What are the keywords in the following sentence? this image is a poster for the event and contains the same information as this post .
event, image, poster

What are the keywords in the following sentence? cat in cage at the veterinarian
cage, cat, veterinarian

What are the keywords in the following sentence? Several trains traveling around railroad tracks, just outside a train station
station, track, train, travel

What are the keywords in the following sentence? a food chain shows how energy is transferred between organisms
energy, organism, transfer