sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: Does the ovulation phase change after a child birth even though the lady has a 28 to 30 day cycle?
 sentence 2: How do I know if my cycle is every 28 days? sentence 1: How should I prepare to get selected for Google summer of code.?
 sentence 2: What should I do to get an entry in the Google Summer of Code contest? sentence 1: What are some of the best free online astrology prediction sites based on your date of birth?
 sentence 2: What is a good website for free books?
not same meaning
not same meaning
same meaning
not same meaning