/usr/lib/R/site-library/sem/etc/ is in r-cran-sem 3.1.8-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/R/site-library/sem/etc/GreekLetters.txt
/usr/lib/R/site-library/sem/etc/M-McArdle.txt
/usr/lib/R/site-library/sem/etc/R-Blau-Duncan.txt
/usr/lib/R/site-library/sem/etc/R-DHP.txt
/usr/lib/R/site-library/sem/etc/R-Kerchoff.txt
/usr/lib/R/site-library/sem/etc/R-Thurstone.txt
/usr/lib/R/site-library/sem/etc/S-Wheaton.txt
/usr/lib/R/site-library/sem/etc/model-Blau-Duncan.txt
/usr/lib/R/site-library/sem/etc/model-Bollen.txt
/usr/lib/R/site-library/sem/etc/model-DHP.txt
/usr/lib/R/site-library/sem/etc/model-HS.txt
/usr/lib/R/site-library/sem/etc/model-Kerchoff.txt
/usr/lib/R/site-library/sem/etc/model-McArdle.txt
/usr/lib/R/site-library/sem/etc/model-Tests.txt
/usr/lib/R/site-library/sem/etc/model-Thurstone.txt
/usr/lib/R/site-library/sem/etc/model-Wheaton-1.txt
/usr/lib/R/site-library/sem/etc/model-Wheaton-2.txt