What are the keywords in the following sentence? doctor preparing a syringe for injection .
injection, prepare, syringe

What are the keywords in the following sentence? soccer fans react watch a match
match, react, watch

What are the keywords in the following sentence? A train on a track leaving the station.
leave, track, train

What are the keywords in the following sentence? panning action shot of young girls watering the flowers in their idyllic backyard garden .
flower, garden, pan, shot