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\*.
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Question: who was the first indian who win world junior badminton championship

Answer: Nehwal


Question: who wins season 2 of americas next top model

Answer: Saleisha Stowers


Question: what does the phrase theres no such thing as free lunch mean in economic terms

Answer:
opportunity cost