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 I know If I'm really in love?
 sentence 2: How can I know if I'm in love? sentence 1: What are the best Xcode online courses?
 sentence 2: What is the best way to become Uber proficient with Xcode? sentence 1: How many hours a day does an IMO contestant spend practicing questions or studying IMO topics in order to achieve that level?
 sentence 2: What would be the typical day of a student preparing for IMO? sentence 1: Why did my friend leave me?
 sentence 2: Will my friends leave me? sentence 1: How can electrons move without losing energy?
 sentence 2: How can electrons move in orbit without losing energy?
not same meaning
same meaning
not same meaning
not same meaning
not same meaning
not same meaning