In this task, You are given an open-domain question that can be answered based on factual information. Your task is to provide \*short\* answer (in a few words only) for the given question. The short answer can be one or more entities or it can also be boolean \*yes\* or \*no\*.

[Q]: who played the sergeant major in we were soldiers
[A]: Sam Elliott


[Q]: during diagenesis the sediments may undergo ___ changes
[A]: physical


[Q]: who plays faith on buffy the vampire slayer
[A]:
Eliza Patricia Dushku