sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: What are the most interesting facts you know?
 sentence 2: What is the most interesting fact you know off the top of your head? sentence 1: How do I know when a girl loves me?
 sentence 2: How can I know my girl is loving me? sentence 1: What internet-based social networks are popular in nations with Muslim majorities?
 sentence 2: Is there a voice based social network? sentence 1: What do you aspire to be?
 sentence 2: Do you aspire to anything? sentence 1: What does it mean to be a 'wildcard' in the NFL?
 sentence 2: When does the NFL 2016 season start?
not same meaning
same meaning
same meaning
not same meaning
not same meaning
not same meaning