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 you get an upvoted answer on Quora?
 sentence 2: How do you vote anonymously on Quora? sentence 1: Do you really think democracy is the best of all forms of government?
 sentence 2: Why is democracy considered the best form of government? sentence 1: Where can I buy second hand books in Hyderabad?
 sentence 2: Where can I buy second hand books in india?
not same meaning
not same meaning
same meaning
not same meaning