What are the keywords in the following sentence? things to consider before going green with a hybrid or electric vehicle
consider, thing, vehicle

What are the keywords in the following sentence? politician shakes hands of children after casting his vote for the general election .
cast, election, hand

What are the keywords in the following sentence? He swivels his chair around to lock eyes with someone.
chair, eye, swivel

What are the keywords in the following sentence? the planet earth rotating in black space as city lights shoot out
earth, shoot, space