sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: What contribution do astrophysicists give to the common public?
 sentence 2: What is the average amount a state contributes to public college education? sentence 1: What does Accenture do, and who are its largest clients?
 sentence 2: How is Accenture different?
not same meaning
not same meaning
not same meaning