sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: When regular dogs see police dogs, do you think they say "Oh shit! It's the cops!"?
 sentence 2: When regular dogs see police dogs do they think shit it's the cops? sentence 1: What are the best films to watch on YouTube?
 sentence 2: What is the most important video to be watched on YouTube? sentence 1: How do I check purity of water?
 sentence 2: How do I check purity of honey?
not same meaning
not same meaning
not same meaning
not same meaning