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: Are LED and CFL lights really more eco-friendly than conventional bulbs?
 sentence 2: Which type of light bulb is more energy efficient, LED or CFL? sentence 1: Which is the best sex position?
 sentence 2: Adult Dating and Relationships: What are the best sex positions?
same meaning
not same meaning
not same meaning