/usr/share/doc/ is in libopsin-java-doc 1.5.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc-base/libopsin-java-doc
/usr/share/doc/libopsin-java-doc/
/usr/share/doc/libopsin-java-doc/api/
/usr/share/doc/libopsin-java-doc/api/index-all.html
/usr/share/doc/libopsin-java-doc/api/index.html
/usr/share/doc/libopsin-java-doc/api/stylesheet.css
/usr/share/doc/libopsin-java-doc/api/uk/
/usr/share/doc/libopsin-java-doc/api/uk/ac/
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/PreProcessorTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/ParsingException.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/OpsinResult.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/StreamSerializer.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/OpsinResult.OPSIN_RESULT_STATUS.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/RadixTrieTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/package-tree.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/FragmentManagerTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/DtdTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/StringTools.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/StereochemistryTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/ParseTokens.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/SMILESFragmentBuilderTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/SSSRTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/ComponentGeneration_StereochemistryTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/NameToStructureConfigurationsTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/ParseRulesResults.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/ParserTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/TokenizerTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/FusedRingNumbererTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/XOMFormatter.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/FusedRingNumbererFunctionsTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/package-frame.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/ParseRules.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/NameToStructureTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/FragmentTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/NameToStructure.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/CycleDetectorTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/package-summary.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/BondTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/StructureBuildingMethodsTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/ComponentGeneration_ProcesslocantsTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/CASToolsTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/VerifyFragmentsTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/ComponentProcessorTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/AtomTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/NameToStructureConfig.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/SMILESWriterTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/NameToStructureException.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/HeteroAtomReplacementTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/ComponentGeneration_AmbiguitiesAndIrregularitiesTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/CipOrderingException.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/WordToolsTest.html
/usr/share/doc/libopsin-java-doc/api/uk/ac/cam/ch/wwmm/opsin/XOMTools.html
/usr/share/doc/libopsin-java-doc/api/overview-tree.html
/usr/share/doc/libopsin-java-doc/api/constant-values.html
/usr/share/doc/libopsin-java-doc/api/package-list
/usr/share/doc/libopsin-java-doc/api/serialized-form.html
/usr/share/doc/libopsin-java-doc/api/resources/
/usr/share/doc/libopsin-java-doc/api/resources/inherit.gif
/usr/share/doc/libopsin-java-doc/api/deprecated-list.html
/usr/share/doc/libopsin-java-doc/api/help-doc.html
/usr/share/doc/libopsin-java-doc/api/allclasses-noframe.html
/usr/share/doc/libopsin-java-doc/api/allclasses-frame.html
/usr/share/doc/libopsin-java-doc/copyright
/usr/share/doc/libopsin-java-doc/changelog.gz
/usr/share/doc/libopsin-java-doc/changelog.Debian.gz