In this task, you're given an open-domain question. Your task is to provide an answer to the given question. There is only one unique answer for each question. Your answer should be short, and refer to an entity, date, number, etc. Do not put your answer in the context of a sentence.

Who is the female guitarist in this is it?
Orianthi Penny Panagaris

How are point sources of pollution regulated by the cwa?
requires dischargers to obtain a National Pollutant Discharge Elimination System (NPDES) permit

Who wrote if you want it here it is come and get it?

Paul McCartney