sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: What does a placement committee member does?
 sentence 2: What is it like to be a Placement Committee member? sentence 1: What are the best chess games for PC?
 sentence 2: What are some of the best chess games played? sentence 1: What is Ruby project?
 sentence 2: What is Ruby?
not same meaning
not same meaning
not same meaning
not same meaning