sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: What would the world be like if humans didn't need to sleep?
 sentence 2: Where would humans be if we didn't need sleep? sentence 1: Is the Kiss of the Dragon pressure point real?
 sentence 2: How useful is the tiles breaking in Taekwondo in real life? Is it just for show? sentence 1: What are some ways South Korea can develop its economy?
 sentence 2: How did South Korea become a developed nation? sentence 1: What is the difference between a Boeing 747 and a 777?
 sentence 2: What is it like to fly on a Boeing 777 from a passenger's perspective? sentence 1: How do I compute the fourier transform of switched cosine or right sided cosine?
 sentence 2: Recommendation Systems: How do I get the source code and dataset of collaborative filtering techniques using similarity (correlation-based/cosine based) computation between users and prediction (aggregation) formula's implemented either in Matlab or Python or PHP or R Language?
not same meaning
same meaning
not same meaning
same meaning
not same meaning
not same meaning