What are the keywords in the following sentence? an agave in bloom with yellow flowers against a blue sky
bloom, flower, sky

What are the keywords in the following sentence? a walking trail and a bridge .
bridge, trail, walk

What are the keywords in the following sentence? A view of an unoccupied home, kitchen and living room.
home, kitchen, room, view

What are the keywords in the following sentence? airplanes fly overhead and tanks roll along in the military parade .
airplane, fly, parade