/usr/share/sgml/entities/ is in sgml-data 2.0.10.
This file is owned by root:root, with mode 0o755.
..
/usr/share/sgml/entities/ATIeqn1
/usr/share/sgml/entities/ArborText/
/usr/share/sgml/entities/ArborText/ATIeqn1
/usr/share/sgml/entities/ArborText/catalog
/usr/share/sgml/entities/HPcalc
/usr/share/sgml/entities/HPservice
/usr/share/sgml/entities/HPsym
/usr/share/sgml/entities/HPtexchars
/usr/share/sgml/entities/HPtif
/usr/share/sgml/entities/Hewlett-Packard/
/usr/share/sgml/entities/Hewlett-Packard/HPcalc
/usr/share/sgml/entities/Hewlett-Packard/HPservice
/usr/share/sgml/entities/Hewlett-Packard/HPsym
/usr/share/sgml/entities/Hewlett-Packard/HPtexchars
/usr/share/sgml/entities/Hewlett-Packard/HPtif
/usr/share/sgml/entities/Hewlett-Packard/catalog
/usr/share/sgml/entities/sgml-iso-entities-8879.1986/
/usr/share/sgml/entities/sgml-iso-entities-8879.1986/ISOamsa.ent
/usr/share/sgml/entities/sgml-iso-entities-8879.1986/ISOamsb.ent
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/usr/share/sgml/entities/sgml-iso-entities-8879.1986/ISOamsn.ent
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/usr/share/sgml/entities/sgml-iso-entities-8879.1986/ISOamsr.ent
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/usr/share/sgml/entities/sgml-iso-entities-8879.1986/ISOcyr1.ent
/usr/share/sgml/entities/sgml-iso-entities-8879.1986/ISOcyr2.ent
/usr/share/sgml/entities/sgml-iso-entities-8879.1986/ISOdia.ent
/usr/share/sgml/entities/sgml-iso-entities-8879.1986/ISOgrk1.ent
/usr/share/sgml/entities/sgml-iso-entities-8879.1986/ISOgrk2.ent
/usr/share/sgml/entities/sgml-iso-entities-8879.1986/ISOgrk3.ent
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/usr/share/sgml/entities/sgml-iso-entities-8879.1986/ISOlat2.ent
/usr/share/sgml/entities/sgml-iso-entities-8879.1986/ISOnum.ent
/usr/share/sgml/entities/sgml-iso-entities-8879.1986/ISOpub.ent
/usr/share/sgml/entities/sgml-iso-entities-8879.1986/ISOtech.ent
/usr/share/sgml/entities/sgml-iso-entities-8879.1986/catalog
/usr/share/sgml/entities/sgml-iso-entities-9573-13.1991/
/usr/share/sgml/entities/sgml-iso-entities-9573-13.1991/ISOamsa.ent
/usr/share/sgml/entities/sgml-iso-entities-9573-13.1991/ISOamsb.ent
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/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
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/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
/usr/share/sgml/entities/xml-iso-entities-8879.1986