sentence 1: How do I build my profile for top B-schools?
 sentence 2: How do I build my profile for Harvard, Wharton, INSEAD etc.? sentence 1: Why do we say hi?
 sentence 2: Why do we say "hi" when we talk with others? sentence 1: Should I combine Modafinil, Piracetam and Choline?
 sentence 2: I'm starting to take noopept, do I need a choline supplement? sentence 1: How do big data databases handle the problem of primary key values running out given that the key is not unlimited size?
 sentence 2: Why can a database table have only one primary key? sentence 1: How do scientists work?
 sentence 2: Where do scientists work? sentence 1: Is it possible to learn to speak another dialect of your native language perfectly?
 sentence 2: To what extent can one forget one's native language?
same meaning
same meaning
not same meaning
not same meaning
not same meaning
not same meaning