/usr/ is in mythes-fr 1:4.2.1-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/doc/
/usr/share/doc/mythes-fr/
/usr/share/doc/mythes-fr/changelog.Debian.gz
/usr/share/doc/mythes-fr/copyright
/usr/share/myspell/
/usr/share/myspell/dicts/
/usr/share/myspell/infos/
/usr/share/myspell/infos/ooo/
/usr/share/myspell/infos/ooo/mythes-fr
/usr/share/mythes/
/usr/share/mythes/thes_fr.idx
/usr/share/mythes/thes_fr.dat
/usr/share/myspell/dicts/th_fr_MC_v2.idx
/usr/share/myspell/dicts/th_fr_LU_v2.idx
/usr/share/myspell/dicts/th_fr_CH_v2.dat
/usr/share/myspell/dicts/th_fr_CH_v2.idx
/usr/share/myspell/dicts/th_fr_BE_v2.idx
/usr/share/myspell/dicts/th_fr_BE_v2.dat
/usr/share/myspell/dicts/th_fr_MC_v2.dat
/usr/share/myspell/dicts/th_fr_FR_v2.idx
/usr/share/myspell/dicts/th_fr_LU_v2.dat
/usr/share/myspell/dicts/th_fr_CA_v2.dat
/usr/share/myspell/dicts/th_fr_CA_v2.idx
/usr/share/myspell/dicts/th_fr_FR_v2.dat
/usr/share/mythes/th_fr_MC_v2.idx
/usr/share/mythes/th_fr_LU_v2.idx
/usr/share/mythes/th_fr_CH_v2.dat
/usr/share/mythes/th_fr_CH_v2.idx
/usr/share/mythes/th_fr_BE_v2.idx
/usr/share/mythes/th_fr_BE_v2.dat
/usr/share/mythes/th_fr_MC_v2.dat
/usr/share/mythes/th_fr_FR_v2.idx
/usr/share/mythes/th_fr_LU_v2.dat
/usr/share/mythes/th_fr_CA_v2.dat
/usr/share/mythes/th_fr_CA_v2.idx
/usr/share/mythes/th_fr_FR_v2.dat