This file is indexed.

/usr/share/tracker/ontologies/34-nmo.ontology is in tracker 0.14.0-2ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
@prefix nco: <http://www.semanticdesktop.org/ontologies/2007/03/22/nco#> .
@prefix nfo: <http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#> .
@prefix nie: <http://www.semanticdesktop.org/ontologies/2007/01/19/nie#> .
@prefix nmo: <http://www.semanticdesktop.org/ontologies/2007/03/22/nmo#> .
@prefix nrl: <http://www.semanticdesktop.org/ontologies/2007/08/15/nrl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix tracker: <http://www.tracker-project.org/ontologies/tracker#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix nao: <http://www.semanticdesktop.org/ontologies/2007/08/15/nao#> .
@prefix nao: <http://www.semanticdesktop.org/ontologies/2007/08/15/nao#> .

nmo: a tracker:Namespace, tracker:Ontology ;
	tracker:prefix "nmo" ;
	nao:lastModified "2011-08-16T11:00:00Z" .

# FIXME Extension requested in Nepomuk
nmo:MimePart a rdfs:Class ;
	rdfs:subClassOf nfo:EmbeddedFileDataObject .

# FIXME Extension requested in Nepomuk
nmo:Multipart a rdfs:Class ;
	rdfs:subClassOf nfo:DataContainer .

# FIXME Extension requested in Nepomuk
nmo:partBoundary a rdf:Property ;
	rdfs:domain nmo:Multipart ;
	rdfs:range xsd:string .

nmo:Message a rdfs:Class ;
	rdfs:comment "A message. Could be an email, instant messanging message, SMS message etc." ;
	rdfs:subClassOf nfo:TextDocument ;
	tracker:notify true .

# FIXME Extension requested in Nepomuk
nmo:Email a rdfs:Class;
	rdfs:label "Email envelope" ;
	rdfs:comment "Root node in a MIME Email" ;
	rdfs:subClassOf nmo:Message .

# FIXME Extension requested in Nepomuk
nmo:hasContent a rdf:Property ;
	rdfs:label "Has content" ;
	rdfs:comment "Link between the root node and the first MIME node in the Email tree" ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Email ;
	rdfs:range nmo:MimePart .

# FIXME Extension requested in Nepomuk
nmo:Attachment a rdfs:Class ;
	rdfs:subClassOf nmo:MimePart ;
	rdfs:subClassOf nfo:Attachment .

nmo:MailAccount a rdfs:Class ;
	rdfs:subClassOf nie:InformationElement .

nmo:MailboxDataObject a rdfs:Class ;
	rdfs:subClassOf nie:DataObject .

nmo:MessageHeader a rdfs:Class ;
	rdfs:label "Message header" ;
	rdfs:comment "Pairs key=value to store arbitrary message header. Note that if a property exists already in the ontology for those headers it should be used. This is just a safe guard mechanism." ;
	rdfs:subClassOf rdfs:Resource .

nmo:IMMessage a rdfs:Class ;
	rdfs:subClassOf nmo:Message .

nmo:Conversation a rdfs:Class ;
	rdfs:comment "A conversation. An exchange of one or multiple messages within a time frame or about a specific topic." ;
	rdfs:subClassOf nie:InformationElement .

nmo:CommunicationChannel a rdfs:Class ;
	rdfs:comment "A communication channel. The container for all messages between participants of a specific group or in a persistent channel." ;
	rdfs:subClassOf nie:InformationElement .

nmo:PermanentChannel a rdfs:Class ;
	rdfs:comment "Well-known stable channel like an IRC room in a specific server. Predefined URL schema for the instances is recommended" ;
	rdfs:subClassOf nmo:CommunicationChannel .

nmo:TransientChannel a rdfs:Class ;
	rdfs:comment "Channel created ad-hoc for the communication like a multi chat in some systems" ;
	rdfs:subClassOf nmo:CommunicationChannel .

nmo:sentDate a rdf:Property ;
	rdfs:comment "Date when this message was sent." ;
	tracker:indexed true ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Message ;
	rdfs:range xsd:dateTime .

nmo:Call a rdfs:Class ;
	rdfs:label "Call" ;
	rdfs:comment "Phone call. Voice communication with the user with somebody else." ;
	rdfs:subClassOf nmo:Message ;
	tracker:domainIndex nmo:sentDate ;
	tracker:notify true .

# required for backward compatibility
nmo:VOIPCall a rdfs:Class ;
	rdfs:subClassOf nmo:Call .

nmo:MailFolder a rdfs:Class ;
	rdfs:subClassOf nfo:Folder .

nmo:recipient a rdf:Property ;
	rdfs:domain nmo:Message ;
	rdfs:range nco:Contact .

nmo:from a rdf:Property ;
	rdfs:comment "The sender of the message." ;
	tracker:indexed true ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Message ;
	rdfs:range nco:Contact .

nmo:headerName a rdf:Property ;
	rdfs:comment "Key of the message header key-value pair" ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:MessageHeader ;
	rdfs:range xsd:string ;
	tracker:weight 3 .

nmo:headerValue a rdf:Property ;
	rdfs:comment "Value of the message header key-value pair" ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:MessageHeader ;
	rdfs:range xsd:string ;
	tracker:weight 4 .

nmo:isAnswered a rdf:Property ;
	rdfs:comment "True when the user has sent a replay to this message" ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Message ;
	rdfs:range xsd:boolean .

nmo:isFlagged a rdf:Property ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Email ;
	rdfs:range xsd:boolean .

nmo:isDeleted a rdf:Property ;
	rdfs:comment "True when the user has removed the Email in the UI but still exists in the DB. Usually a purge or confirmation from the user will actually remove the data." ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Message ;
	rdfs:range xsd:boolean .

nmo:isDraft a rdf:Property ;
	rdfs:comment "The user hasn't finished editing the message and might want to continue later" ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Message ;
	rdfs:range xsd:boolean .

nmo:isRecent a rdf:Property ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Email ;
	rdfs:range xsd:boolean .

nmo:isRead a rdf:Property ;
	rdfs:comment "The messsage has been readed. The user has opened the message or has marked it directly as readed" ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Message ;
	rdfs:range xsd:boolean .

nmo:isSent a rdf:Property ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Message ;
	rdfs:range xsd:boolean .

nmo:isEmergency a rdf:Property ;
	rdfs:comment "Special message from the network, probably coming via Cell broadcasting with emergency information" ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Message ;
	rdfs:range xsd:boolean .

nmo:htmlMessageContent a rdf:Property ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Message ;
	rdfs:range xsd:string .

nmo:references a rdf:Property ;
	rdfs:domain nmo:Message ;
	rdfs:range nmo:Message .

nmo:inReplyTo a rdf:Property ;
	rdfs:subPropertyOf nmo:references ;
	rdfs:domain nmo:Message ;
	rdfs:range nmo:Message .

nmo:charSet a rdf:Property ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:MimePart ;
	rdfs:range xsd:string .


nmo:contentId a rdf:Property ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:MimePart ;
	rdfs:range xsd:string .

nmo:contentTransferEncoding a rdf:Property ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:MimePart ;
	rdfs:range xsd:string .

nmo:contentDescription a rdf:Property ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:MimePart ;
	rdfs:range xsd:string .

nmo:contentDisposition a rdf:Property ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:MimePart ;
	rdfs:range xsd:string .

# FIXME Extension requested in Nepomuk
nmo:mimeHeader a rdf:Property ;
	rdfs:domain nmo:MimePart ;
	rdfs:range rdfs:Resource .

nmo:messageHeader a rdf:Property ;
	rdfs:domain nmo:Message ;
	rdfs:range nmo:MessageHeader .

nmo:messageId a rdf:Property ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Message ;
	rdfs:range xsd:string .

nmo:messageSubject a rdf:Property ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Message ;
	rdfs:range xsd:string ;
	tracker:fulltextIndexed true ;
	tracker:weight 5 .

nmo:receivedDate a rdf:Property ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Message ;
	rdfs:range xsd:dateTime .

nmo:replyTo a rdf:Property ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Message ;
	rdfs:range nco:Contact .

nmo:sender a rdf:Property ;
	tracker:indexed true ;
	rdfs:subPropertyOf nmo:recipient ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Message ;
	rdfs:range nco:Contact .

nmo:to a rdf:Property ;
	rdfs:domain nmo:Message ;
	tracker:indexed true ;
	rdfs:range nco:Contact .

nmo:bcc a rdf:Property ;
	rdfs:domain nmo:Message ;
	rdfs:range nco:Contact .

nmo:cc a rdf:Property ;
	rdfs:domain nmo:Message ;
	rdfs:range nco:Contact .

nmo:conversation a rdf:Property ;
	rdfs:comment "Connects this message to a conversation. Every message must only be part of a single conversation." ;
	tracker:indexed true ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Message ;
	rdfs:range nmo:Conversation .

nmo:communicationChannel a rdf:Property ;
	rdfs:comment "Connects this message to a communication channel. Every message must only be in a single channel." ;
	tracker:indexed true ;
	tracker:secondaryIndex nmo:receivedDate ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Message ;
	rdfs:range nmo:CommunicationChannel .

nmo:lastMessageDate a rdf:Property ;
	rdfs:comment "nmo:sentDate of the most recent message in this channel." ;
	tracker:indexed true ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:CommunicationChannel ;
	rdfs:range xsd:dateTime .

nmo:lastSuccessfulMessageDate a rdf:Property ;
	rdfs:comment "nmo:sentDate of the most recent successful message in this channel." ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:CommunicationChannel ;
	rdfs:range xsd:dateTime .

nmo:hasParticipant a rdf:Property ;
	tracker:indexed true ;
	rdfs:domain nmo:CommunicationChannel ;
	rdfs:range nco:Contact .

nmo:duration a rdf:Property ;
        rdfs:comment "Duration of the call in seconds" ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Call ;
	rdfs:range xsd:integer .

# FIXME Extension to nepomuk
nmo:accountName a rdf:Property ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:MailAccount ;
	rdfs:range xsd:string ;
	tracker:weight 3 .

# FIXME Extension to nepomuk
nmo:accountDisplayName a rdf:Property ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:MailAccount ;
	rdfs:range xsd:string ;
	tracker:weight 3 .

# FIXME Extension to nepomuk
nmo:fromAddress a rdf:Property ;
	rdfs:comment "From address of an account" ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:MailAccount ;
	rdfs:range nco:EmailAddress .

# FIXME Extension to nepomuk
nmo:signature a rdf:Property ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:MailAccount ;
	rdfs:range xsd:string ;
	tracker:weight 2 .

# FIXME Extension to nepomuk
nmo:folderName a rdf:Property ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:MailFolder ;
	rdfs:range xsd:string ;
	tracker:weight 4 .

# FIXME Extension to nepomuk
nmo:status a rdf:Property ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Email ;
	rdfs:range xsd:string .

# FIXME Extension to nepomuk
nmo:responseType a rdf:Property ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Email ;
	rdfs:range xsd:string .

# FIXME Extension to nepomuk
nmo:serverCount a rdf:Property ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:MailFolder ;
	rdfs:range xsd:integer .

# FIXME Extension to nepomik
nmo:serverUnreadCount a rdf:Property ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:MailFolder ;
	rdfs:range xsd:integer .

# Don't use this!! Only for compat with original Nepomuk NMO
nmo:hasAttachment a rdf:Property ;
	rdfs:domain nmo:Message ;
	rdfs:range nfo:Attachment .

# Don't use this!! Only for compat with original Nepomuk NMO
nmo:contentMimeType a rdf:Property ;
	rdfs:domain nmo:Email ;
	rdfs:range xsd:string ;
	rdfs:subPropertyOf nie:mimeType .


#
# SMS support
#
nmo:PhoneMessage a rdfs:Class ;
	rdfs:label "Phone messages (sms and mms)";
	rdfs:comment "Superclass with shared properties between SMS and MMS.";
	rdfs:subClassOf nmo:Message .


nmo:SMSMessage a rdfs:Class ;
	rdfs:label "SMS Message";
	rdfs:comment "Plain SMS Message" ;
	rdfs:subClassOf nmo:PhoneMessage.

nmo:toVCard a rdf:Property ;
	rdfs:label "fromVCard" ;
	rdfs:comment "Reference to a VCard in the filesystem, containing the Contact information of 'to' recipients" ;
	rdfs:domain nmo:PhoneMessage ;
	rdfs:range nfo:FileDataObject .
	
nmo:fromVCard a rdf:Property ;
	rdfs:label "fromVCard" ;
	rdfs:comment "Reference to a VCard in the filesystem, containing the Contact information of the 'from' recipient";
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:PhoneMessage ;
	rdfs:range nfo:FileDataObject .

#FIXME unify encoding representation... this is the third encoding property in nepomuk
nmo:encoding a rdf:Property ;
	rdfs:label "enconding";
	rdfs:comment "Encoding of the message" ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:PhoneMessage ;
	rdfs:range xsd:string .


nmo:phoneMessageId a rdf:Property ;
	rdfs:label "Phone message Id";
	rdfs:comment "Id assigned in the system when the phone message is received" ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:PhoneMessage;
	rdfs:range xsd:integer.

nmo:PhoneMessageFolder a rdfs:Class ;
	rdfs:label "Phone message Folder";
	rdfs:comment "Folder for phone message (SMS and MMS). Not a subclass of nfo:Folder because it would confuse filesystem folders" ;
	rdfs:subClassOf nie:InformationElement .

nmo:phoneMessageFolderId a rdf:Property ;
	rdfs:label "folder id";
	rdfs:comment "Id assigned to the folder for sync purpouses" ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:PhoneMessageFolder ;
	rdfs:range xsd:string ;
	rdfs:subPropertyOf nie:identifier .

nmo:validityPeriod a rdf:Property ;
	rdfs:label "Validity period" ;
	rdfs:comment "Validity period of an SMS in seconds. It is a value coming from the network" ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:PhoneMessage ;
	rdfs:range xsd:integer .

nmo:containsPhoneMessageFolder a rdf:Property ;
	rdfs:label "contains Phone Message Folder";
	rdfs:comment "To link and reconstruct a hierarchy of folders" ;
	rdfs:domain nmo:PhoneMessageFolder;
	rdfs:range nmo:PhoneMessageFolder .

nmo:containsPhoneMessage a rdf:Property ;
	rdfs:label "Contains Phone Message";
	rdfs:comment "Link between an Phone Message and a Folder" ;
	rdfs:domain nmo:PhoneMessageFolder;
	rdfs:range nmo:PhoneMessage .


nmo:predefined-phone-msg-folder-inbox a nmo:PhoneMessageFolder ;
	nie:title "Inbox" ;
	nmo:phoneMessageFolderId "0x1002" .

nmo:predefined-phone-msg-folder-outbox a nmo:PhoneMessageFolder ;
	nie:title "Outbox" ;
	nmo:phoneMessageFolderId "0x1003" .

nmo:predefined-phone-msg-folder-draft a nmo:PhoneMessageFolder ;
	nie:title "Draft" ;
	nmo:phoneMessageFolderId "0x1004" .

nmo:predefined-phone-msg-folder-sent a nmo:PhoneMessageFolder ;
	nie:title "Sent" ;
	nmo:phoneMessageFolderId "0x1005" .


nmo:predefined-phone-msg-folder-myfolder a nmo:PhoneMessageFolder ;
	nie:title "MyFolder" ;
	nmo:phoneMessageFolderId "0x1008" .

nmo:DeliveryStatus a rdfs:Class ;
	rdfs:label "Delivery statuses" ;
	rdfs:comment "Predefined set of delivery status instances" ;
	rdfs:subClassOf rdfs:Resource .

nmo:deliveryStatus a rdf:Property ;
	rdfs:label "deliveryStatus" ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Message ;
	rdfs:range nmo:DeliveryStatus .

nmo:delivery-status-sent a nmo:DeliveryStatus .
nmo:delivery-status-delivered a nmo:DeliveryStatus .
nmo:delivery-status-temporarily-failed a nmo:DeliveryStatus .
nmo:delivery-status-temporarily-failed-offline a nmo:DeliveryStatus .
nmo:delivery-status-permanently-failed a nmo:DeliveryStatus .


nmo:reportDelivery a rdf:Property ;
	rdfs:label "Report delivery" ;
	rdfs:comment "Report delivery has been requested for the message" ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Message ;
	rdfs:range xsd:boolean .

# Read report property
nmo:sentWithReportRead a rdf:Property ;
	rdfs:label "Report read" ;
	rdfs:comment "The message has been send with a flag indicating that we want to receive a confirmation when the recipient reads it" ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Message ;
	rdfs:range xsd:boolean .

nmo:ReportReadStatus a rdfs:Class ;
	rdfs:label "Read statuses" ;
	rdfs:comment "Predefined set of read status instances" ;
	rdfs:subClassOf rdfs:Resource .

nmo:reportReadStatus a rdf:Property ;
	rdfs:label "reportReadStatus" ;
	rdfs:comment "If the message was sent with report read enable, this property stores the status of that message: if the recipient has read it, delete it, or we are still waiting for an answer" ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Message ;
	rdfs:range nmo:ReportReadStatus .

nmo:read-status-read a nmo:ReportReadStatus .
nmo:read-status-deleted a nmo:ReportReadStatus .
nmo:read-status-unknown a nmo:ReportReadStatus .

nmo:mustAnswerReportRead a rdf:Property ;
	rdfs:label "Report read requested" ;
	rdfs:comment "The message came with the report-read flag enabled, and somebody must be send the answer back. Once the report is sent, this property goes to False.";
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Message ;
	rdfs:range xsd:boolean .

# MMS support
nmo:MMSMessage a rdfs:Class;
	rdfs:label "MMS Message" ;
	rdfs:comment "An MMS message is basically a Email with different envelop. It inherits also from SMS the folders and delivery status" ;
	rdfs:subClassOf nmo:PhoneMessage .

nmo:mmsHasContent a rdf:Property ;
	rdfs:label "MMS has content" ;
	rdfs:comment "Link to the mimeparts with the multimedia content (miming nmo:hasContent)" ;
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:MMSMessage ;
	 rdfs:range nmo:MimePart .

nmo:mmsId a rdf:Property ;
	rdfs:label "mms id";
	rdfs:comment "Unique identifier of an MMS message. It comes from the server";
	nrl:maxCardinality 1 ;
	rdfs:domain nmo:Message ;
	rdfs:range xsd:string .