sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: Why are American police officers so fat?
 sentence 2: Why are police officers so fat? sentence 1: Do Quora users still see questions that are marked as needing improvement?
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 sentence 2: How is computer memory measured?
not same meaning
not same meaning
same meaning
not same meaning
same meaning
same meaning
not same meaning
same meaning