sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: How do I earn 500 dollar per day online?
 sentence 2: How can I earn 30-50$ per day online? sentence 1: If I calculate the number of divisors by the prime factors, what would be the time complexity of that code?
 sentence 2: How do I calculate the number of divisors by the prime factors? sentence 1: Should I choose mechanical or civil engineering?
 sentence 2: Which is more interesting: mechanical engineering or civil engineering?
not same meaning
not same meaning
not same meaning
not same meaning