/usr/share/ri/1.8/system/OpenURI/ is in ri1.8 1.8.7.352-2ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/ri/1.8/system/OpenURI/Buffer/
/usr/share/ri/1.8/system/OpenURI/Buffer/cdesc-Buffer.yaml
/usr/share/ri/1.8/system/OpenURI/HTTPError/
/usr/share/ri/1.8/system/OpenURI/HTTPError/cdesc-HTTPError.yaml
/usr/share/ri/1.8/system/OpenURI/HTTPError/new-c.yaml
/usr/share/ri/1.8/system/OpenURI/Meta/
/usr/share/ri/1.8/system/OpenURI/Meta/cdesc-Meta.yaml
/usr/share/ri/1.8/system/OpenURI/Meta/charset-i.yaml
/usr/share/ri/1.8/system/OpenURI/Meta/content_encoding-i.yaml
/usr/share/ri/1.8/system/OpenURI/Meta/content_type-i.yaml
/usr/share/ri/1.8/system/OpenURI/Meta/last_modified-i.yaml
/usr/share/ri/1.8/system/OpenURI/OpenRead/
/usr/share/ri/1.8/system/OpenURI/OpenRead/cdesc-OpenRead.yaml
/usr/share/ri/1.8/system/OpenURI/OpenRead/open-i.yaml
/usr/share/ri/1.8/system/OpenURI/OpenRead/read-i.yaml
/usr/share/ri/1.8/system/OpenURI/cdesc-OpenURI.yaml