What are the keywords in the following sentence? panning across a forest floor in summer with dried leaves on the ground
dry, ground, leave, pan, summer

What are the keywords in the following sentence? This sandwich has sliced meat, tomatoes, and alfalfa sprouts in between two slices of a bun.
meat, sandwich, slice, tomato

What are the keywords in the following sentence? A long train travels past some trees along the railroad tracks
track, travel, tree

What are the keywords in the following sentence? bonsai like arrangement with biological genus grown against a rock like a real tree
genus, grow, tree