/usr/share/doc/libplplot12/ is in libplplot-ada1-dev 5.10.0+dfsg2-0.1ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/libplplot12/examples/
/usr/share/doc/libplplot12/examples/ada/
/usr/share/doc/libplplot12/examples/ada/CMakeLists.txt
/usr/share/doc/libplplot12/examples/ada/Makefile
/usr/share/doc/libplplot12/examples/ada/x00a.adb
/usr/share/doc/libplplot12/examples/ada/x01a.adb
/usr/share/doc/libplplot12/examples/ada/x02a.adb
/usr/share/doc/libplplot12/examples/ada/x03a.adb
/usr/share/doc/libplplot12/examples/ada/x04a.adb
/usr/share/doc/libplplot12/examples/ada/x05a.adb
/usr/share/doc/libplplot12/examples/ada/x06a.adb
/usr/share/doc/libplplot12/examples/ada/x07a.adb
/usr/share/doc/libplplot12/examples/ada/x08a.adb
/usr/share/doc/libplplot12/examples/ada/x09a.adb
/usr/share/doc/libplplot12/examples/ada/x10a.adb
/usr/share/doc/libplplot12/examples/ada/x11a.adb
/usr/share/doc/libplplot12/examples/ada/x12a.adb
/usr/share/doc/libplplot12/examples/ada/x13a.adb
/usr/share/doc/libplplot12/examples/ada/x14a.adb
/usr/share/doc/libplplot12/examples/ada/x15a.adb
/usr/share/doc/libplplot12/examples/ada/x16a.adb
/usr/share/doc/libplplot12/examples/ada/x17a.adb
/usr/share/doc/libplplot12/examples/ada/x18a.adb
/usr/share/doc/libplplot12/examples/ada/x19a.adb
/usr/share/doc/libplplot12/examples/ada/x20a.adb
/usr/share/doc/libplplot12/examples/ada/x21a.adb
/usr/share/doc/libplplot12/examples/ada/x22a.adb
/usr/share/doc/libplplot12/examples/ada/x23a.adb
/usr/share/doc/libplplot12/examples/ada/x24a.adb
/usr/share/doc/libplplot12/examples/ada/x25a.adb
/usr/share/doc/libplplot12/examples/ada/x26a.adb
/usr/share/doc/libplplot12/examples/ada/x27a.adb
/usr/share/doc/libplplot12/examples/ada/x28a.adb
/usr/share/doc/libplplot12/examples/ada/x29a.adb
/usr/share/doc/libplplot12/examples/ada/x30a.adb
/usr/share/doc/libplplot12/examples/ada/x31a.adb
/usr/share/doc/libplplot12/examples/ada/x33a.adb
/usr/share/doc/libplplot12/examples/ada/xthick00a.adb
/usr/share/doc/libplplot12/examples/ada/xthick01a.adb
/usr/share/doc/libplplot12/examples/ada/xthick02a.adb
/usr/share/doc/libplplot12/examples/ada/xthick03a.adb
/usr/share/doc/libplplot12/examples/ada/xthick04a.adb
/usr/share/doc/libplplot12/examples/ada/xthick05a.adb
/usr/share/doc/libplplot12/examples/ada/xthick06a.adb
/usr/share/doc/libplplot12/examples/ada/xthick07a.adb
/usr/share/doc/libplplot12/examples/ada/xthick08a.adb
/usr/share/doc/libplplot12/examples/ada/xthick09a.adb
/usr/share/doc/libplplot12/examples/ada/xthick10a.adb
/usr/share/doc/libplplot12/examples/ada/xthick11a.adb
/usr/share/doc/libplplot12/examples/ada/xthick12a.adb
/usr/share/doc/libplplot12/examples/ada/xthick13a.adb
/usr/share/doc/libplplot12/examples/ada/xthick14a.adb
/usr/share/doc/libplplot12/examples/ada/xthick15a.adb
/usr/share/doc/libplplot12/examples/ada/xthick16a.adb
/usr/share/doc/libplplot12/examples/ada/xthick17a.adb
/usr/share/doc/libplplot12/examples/ada/xthick18a.adb
/usr/share/doc/libplplot12/examples/ada/xthick19a.adb
/usr/share/doc/libplplot12/examples/ada/xthick20a.adb
/usr/share/doc/libplplot12/examples/ada/xthick21a.adb
/usr/share/doc/libplplot12/examples/ada/xthick22a.adb
/usr/share/doc/libplplot12/examples/ada/xthick23a.adb
/usr/share/doc/libplplot12/examples/ada/xthick24a.adb
/usr/share/doc/libplplot12/examples/ada/xthick25a.adb
/usr/share/doc/libplplot12/examples/ada/xthick26a.adb
/usr/share/doc/libplplot12/examples/ada/xthick27a.adb
/usr/share/doc/libplplot12/examples/ada/xthick28a.adb
/usr/share/doc/libplplot12/examples/ada/xthick29a.adb
/usr/share/doc/libplplot12/examples/ada/xthick30a.adb
/usr/share/doc/libplplot12/examples/ada/xthick31a.adb
/usr/share/doc/libplplot12/examples/ada/xthick33a.adb