You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

[Q]: Category: LAW 
Clue: In Latin legal lingo it means "by the fact itself"
[A]: ipso facto


[Q]: Category: AMERICAN POETRY 
Clue: In "Stopping by Woods on a Snowy Evening", he wrote that he had "promises to keep, and miles to go before I sleep"
[A]: frost


[Q]: Category: MOVIE STARS OLD & NEW 
Clue: This alliterative-named actor caught many eyes as the smooth Trent in "Swingers"
[A]:
vince vaughn