sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: What is one thing you would never do?
 sentence 2: What is one thing you will never do in your life? sentence 1: How do I gain weight at sixteen years old?
 sentence 2: How do I gain weight as an 18 year old? sentence 1: How do I learn the stock market?
 sentence 2: How do I invest money into stock market? sentence 1: What is a real time system?
 sentence 2: What is real time system?
not same meaning
same meaning
same meaning
same meaning
same meaning