sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: Thermodynamics: What is the difference between wet steam and dry steam?
 sentence 2: Thermodynamics: What is the difference between steam and vapour? sentence 1: How many people love Quora?
 sentence 2: How many people just love being on Quora? sentence 1: How do I make studying fun?
 sentence 2: What should I do to make studies fun? sentence 1: How do I find long lost friends?
 sentence 2: How do I find a long lost friend in Germany online?
not same meaning
not same meaning
not same meaning
same meaning
not same meaning