/usr/share/ubiquity-slideshow/slides/loc.zh_CN/ is in ubiquity-slideshow-kubuntu 58.2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/ubiquity-slideshow/slides/loc.zh_CN/accessibility.html
/usr/share/ubiquity-slideshow/slides/loc.zh_CN/games.html
/usr/share/ubiquity-slideshow/slides/loc.zh_CN/get-help.html
/usr/share/ubiquity-slideshow/slides/loc.zh_CN/get-involved.html
/usr/share/ubiquity-slideshow/slides/loc.zh_CN/graphics.html
/usr/share/ubiquity-slideshow/slides/loc.zh_CN/installing-software.html
/usr/share/ubiquity-slideshow/slides/loc.zh_CN/internet.html
/usr/share/ubiquity-slideshow/slides/loc.zh_CN/multimedia.html
/usr/share/ubiquity-slideshow/slides/loc.zh_CN/office.html
/usr/share/ubiquity-slideshow/slides/loc.zh_CN/pim.html
/usr/share/ubiquity-slideshow/slides/loc.zh_CN/welcome.html