sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: Who is voting for Donald Trump?
 sentence 2: Who is Donald Trump? sentence 1: Can a President lose his job if he goes to prison?
 sentence 2: What would happen if a president divorced his wife to marry his mistress? Would he have to resign? Would it be a scandal? sentence 1: What do the numbers on airport runways mean?
 sentence 2: Airports: Which two countries are connected by a runway? The traffic has to stop everytime a flight is taking off. sentence 1: If universe is expanding without a limit and dark and vacuum energy are created as it expands?
 sentence 2: How is dark/vacuum energy created with the universe conserved if it is not conserved? Can infinite of these be created?
not same meaning
not same meaning
not same meaning
not same meaning
same meaning