/usr/share/kde4/apps/parley/plugins/ is in parley-data 4:4.13.0-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/kde4/apps/parley/plugins/example.desktop
/usr/share/kde4/apps/parley/plugins/example.py
/usr/share/kde4/apps/parley/plugins/google_dictionary.desktop
/usr/share/kde4/apps/parley/plugins/google_dictionary.py
/usr/share/kde4/apps/parley/plugins/google_images.desktop
/usr/share/kde4/apps/parley/plugins/google_images.py
/usr/share/kde4/apps/parley/plugins/google_images.ui
/usr/share/kde4/apps/parley/plugins/leo-dict.desktop
/usr/share/kde4/apps/parley/plugins/leo-dict.py
/usr/share/kde4/apps/parley/plugins/mwclient/
/usr/share/kde4/apps/parley/plugins/mwclient/README.txt
/usr/share/kde4/apps/parley/plugins/mwclient/__init__.py
/usr/share/kde4/apps/parley/plugins/mwclient/client.py
/usr/share/kde4/apps/parley/plugins/mwclient/compatibility.py
/usr/share/kde4/apps/parley/plugins/mwclient/errors.py
/usr/share/kde4/apps/parley/plugins/mwclient/ex.py
/usr/share/kde4/apps/parley/plugins/mwclient/http.py
/usr/share/kde4/apps/parley/plugins/mwclient/listing.py
/usr/share/kde4/apps/parley/plugins/mwclient/page.py
/usr/share/kde4/apps/parley/plugins/mwclient/page_nowriteapi.py
/usr/share/kde4/apps/parley/plugins/mwclient/simplejson/
/usr/share/kde4/apps/parley/plugins/mwclient/simplejson/__init__.py
/usr/share/kde4/apps/parley/plugins/mwclient/simplejson/decoder.py
/usr/share/kde4/apps/parley/plugins/mwclient/simplejson/encoder.py
/usr/share/kde4/apps/parley/plugins/mwclient/simplejson/jsonfilter.py
/usr/share/kde4/apps/parley/plugins/mwclient/simplejson/ordered_dict.py
/usr/share/kde4/apps/parley/plugins/mwclient/simplejson/scanner.py
/usr/share/kde4/apps/parley/plugins/mwclient/simplejson/tool.py
/usr/share/kde4/apps/parley/plugins/mwclient/upload.py
/usr/share/kde4/apps/parley/plugins/wiktionary_sound.desktop
/usr/share/kde4/apps/parley/plugins/wiktionary_sound.py