/usr/share/sgml/entities/sgml-iso-entities-9573-13.1991/ is in sgml-data 2.0.9-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/sgml/entities/sgml-iso-entities-9573-13.1991/ISOamsa.ent
/usr/share/sgml/entities/sgml-iso-entities-9573-13.1991/ISOamsb.ent
/usr/share/sgml/entities/sgml-iso-entities-9573-13.1991/ISOamsc.ent
/usr/share/sgml/entities/sgml-iso-entities-9573-13.1991/ISOamsn.ent
/usr/share/sgml/entities/sgml-iso-entities-9573-13.1991/ISOamso.ent
/usr/share/sgml/entities/sgml-iso-entities-9573-13.1991/ISOamsr.ent
/usr/share/sgml/entities/sgml-iso-entities-9573-13.1991/ISOchem.ent
/usr/share/sgml/entities/sgml-iso-entities-9573-13.1991/ISOgrk3.ent
/usr/share/sgml/entities/sgml-iso-entities-9573-13.1991/ISOgrk4.ent
/usr/share/sgml/entities/sgml-iso-entities-9573-13.1991/ISOmfrk.ent
/usr/share/sgml/entities/sgml-iso-entities-9573-13.1991/ISOmopf.ent
/usr/share/sgml/entities/sgml-iso-entities-9573-13.1991/ISOmscr.ent
/usr/share/sgml/entities/sgml-iso-entities-9573-13.1991/ISOtech.ent
/usr/share/sgml/entities/sgml-iso-entities-9573-13.1991/catalog