A quick question for my WordPress timeline…

`/wp-content/languages/themes/theme_x/*.mo`

`/wp-content/themes/theme_x/languages/*.mo`

what is the difference of these directories and how are these parsed in regard to the translated string that's visible in the front end if both have a (different) translation for the same string? My guess is that the `theme_x/languages/`will trump, but what purpose has the `languages/theme_x/` directory? Where is the "correct" place for translations?