What are the keywords in the following sentence? grass was feet tall with long spikes of seed waving in the wind .
grass, spike, wind

What are the keywords in the following sentence? The train is traveling form the city, and has arrived at the junction of several tracks.
junction, track, train

What are the keywords in the following sentence? a lone bright light against the darkening sky .
darken, light, sky

What are the keywords in the following sentence? dead leaf with autumn colors floating on the water
color, leaf, water