What are the keywords in the following sentence? fishermen who were stranded get down from a helicopter after they were rescued .
fisherman, helicopter, strand

What are the keywords in the following sentence? olympic athlete of waves for fans during event
athlete, event, fan

What are the keywords in the following sentence? A trolley train is traveling on a track along the beach.
beach, track, train, travel

What are the keywords in the following sentence? monks releasing flying lanterns during the festival at temple .
lantern, monk, temple