Hey Riot, on Universe what's the difference between a Video, Animation, and Cinematic?

Per the title, all of these are "videos" yet some are listed as Animations while others are Cinematics and others still are Videos. There's also Dev Diaries, Behind the Scenes, and Music Videos.

Is there a specific difference between all of these? Related to canon or anything similar? A specific length that a Cinematic is while a Video is not? Something related to how they're produced?

I'm just curious what the distinction is, if any. I've always been a tad confused about Universe and how it does things. I think Riot could benefit greatly from a "Universe" FAQ where they answer common question about the site and how it does things.