What are the keywords in the following sentence? students walk to school east into the rising sun down a city
rise, school, sun

What are the keywords in the following sentence? it can be tricky to fit a bike into a car neatly .
bike, car, fit

What are the keywords in the following sentence? A pair of planes in an airport lot parked for boarding and exiting.
board, park, plane

What are the keywords in the following sentence? A lady poking a needle into something on a paper.
lady, needle, poke