What are the keywords in the following sentence? a poster beside one of the suburban platforms at a railway station .
platform, poster, station

What are the keywords in the following sentence? A climber scales a cliff.
cliff, climber, scale

What are the keywords in the following sentence? dancers arrive for the launch of tv talent show
arrive, dancer, launch

What are the keywords in the following sentence? family with children and suitcases at the airport
airport, family, suitcase