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 the difference between primary, secondary, and tertiary health care?
 sentence 2: What are Primary Health Care needs of the USA? sentence 1: What is your favorite animals?
 sentence 2: What are your favorite animals and why? sentence 1: What's the difference between a pre-IPO and post-IPO investment?
 sentence 2: What is a pre-IPO tech start up? sentence 1: What is the difference of table manners between China and the UK?
 sentence 2: What do you think about the difference of table manners between China and Western culture?
not same meaning
not same meaning
same meaning
not same meaning
same meaning