[Fedora-packaging] What is the category of a dictionary type software in desktop file?

[Liberty]

I maintain the goldendict, a multiformat dictionary. nucleo has suggested that the desktop
file should be in category
Categories=Office;Dictionary;Education;Qt;Applications
according to the
http://standards.freedesktop.org/menu-spec/latest/apa.html
However I have found that gnome-dictionary and stardict has placed the
category in Utilities;Dictionary.
I am puzzled about which is correct. Thanks.