sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: What are the best marketing techniques for Q&A websites?
 sentence 2: What is the best marketing technique for a startup? sentence 1: Why is pubic hair thicker than the head's hair?
 sentence 2: Why does body hair grow faster than hair on your head? sentence 1: How much noise does one bar of the iPhone volume slider make in decibels?
 sentence 2: What are some social impacts of The Agricultural Revolution and what are some examples?
not same meaning
not same meaning
not same meaning
not same meaning