What are the keywords in the following sentence? emergency workers help the passenger from a vehicle after a serious collision on eastbound west
collision, passenger, vehicle, west, worker

What are the keywords in the following sentence? A car is zooming off with fire coming out of its exhaust pipe.
car, come, fire, pipe

What are the keywords in the following sentence? Here is various different images of people taking care of and spending time with an elephant.
care, elephant, take

What are the keywords in the following sentence? the burning candle on which to melt wax
burn, candle, melt