What's the difference between a film scenario and a treatment?

I'm applying to Graduate School (Film Program). The school's I'm applying to require I include a film scenario in my portfolio, along with a script and treatment. I've written synopsis's, treatments, and scripts before. What on earth is the difference between a film scenario and a treatment?|||Quote:"A film treatment (or treatment for short) is a piece of prose, typically the step between scene cards (index cards) and the first draft of a screenplay for a motion picture, television program, or radio play. It is generally longer and more detailed than an outline (or one-page synopsis), and it may include details of directorial style that an outline omits. They read like a short story, except told in the present tense and describing events as they happen. There are two types: the original draft treatment, created during the writing process, and the presentation treatment, created as presentation material."



I think a scenario is basically the set up in 5 sentences or less.

A treatment is a major scene to scene outline.