/usr/share/xml/entities/ is in sgml-data 2.0.9-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/xml/entities/xml-iso-entities-8879.1986/
/usr/share/xml/entities/xml-iso-entities-8879.1986/ISOamsa.ent
/usr/share/xml/entities/xml-iso-entities-8879.1986/ISOamsb.ent
/usr/share/xml/entities/xml-iso-entities-8879.1986/ISOamsc.ent
/usr/share/xml/entities/xml-iso-entities-8879.1986/ISOamsn.ent
/usr/share/xml/entities/xml-iso-entities-8879.1986/ISOamso.ent
/usr/share/xml/entities/xml-iso-entities-8879.1986/ISOamsr.ent
/usr/share/xml/entities/xml-iso-entities-8879.1986/ISObox.ent
/usr/share/xml/entities/xml-iso-entities-8879.1986/ISOcyr1.ent
/usr/share/xml/entities/xml-iso-entities-8879.1986/ISOcyr2.ent
/usr/share/xml/entities/xml-iso-entities-8879.1986/ISOdia.ent
/usr/share/xml/entities/xml-iso-entities-8879.1986/ISOgrk1.ent
/usr/share/xml/entities/xml-iso-entities-8879.1986/ISOgrk2.ent
/usr/share/xml/entities/xml-iso-entities-8879.1986/ISOgrk3.ent
/usr/share/xml/entities/xml-iso-entities-8879.1986/ISOgrk4.ent
/usr/share/xml/entities/xml-iso-entities-8879.1986/ISOlat1.ent
/usr/share/xml/entities/xml-iso-entities-8879.1986/ISOlat2.ent
/usr/share/xml/entities/xml-iso-entities-8879.1986/ISOnum.ent
/usr/share/xml/entities/xml-iso-entities-8879.1986/ISOpub.ent
/usr/share/xml/entities/xml-iso-entities-8879.1986/ISOtech.ent
/usr/share/xml/entities/xml-iso-entities-8879.1986/catalog
/usr/share/xml/entities/xml-iso-entities-8879.1986/catalog.xml