This string looks like a standard file naming convention for a TV show episode, specifically for , Season 2, Episode 9 ("Triage").
: Indicates that the file includes Polish subtitles ( Polskie napisy ). 720p : The video resolution (1280x720 pixels). For.All.Mankind.S02E09.PLSUB.720p.WEB-DL.XviD-N...
The "Good Guide" or "Scene" naming convention breaks down like this: : The name of the series. S02E09 : Season 2, Episode 9. This string looks like a standard file naming