/usr/share/avogadro/fragments/fatty_acids/ is in avogadro-data 1.2.0-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/avogadro/fragments/fatty_acids/arachidonic_acid.cml
/usr/share/avogadro/fragments/fatty_acids/cervonic_acid.cml
/usr/share/avogadro/fragments/fatty_acids/decanoic_acid.cml
/usr/share/avogadro/fragments/fatty_acids/hexanoic_acid.cml
/usr/share/avogadro/fragments/fatty_acids/lauric_acid.cml
/usr/share/avogadro/fragments/fatty_acids/linoleic_acid.cml
/usr/share/avogadro/fragments/fatty_acids/linolenic_acid.cml
/usr/share/avogadro/fragments/fatty_acids/myristic_acid.cml
/usr/share/avogadro/fragments/fatty_acids/octanoic_acid.cml
/usr/share/avogadro/fragments/fatty_acids/oleic_acid.cml
/usr/share/avogadro/fragments/fatty_acids/palmitic_acid.cml
/usr/share/avogadro/fragments/fatty_acids/pentanoic_acid.cml
/usr/share/avogadro/fragments/fatty_acids/stearic_acid.cml