What are the keywords in the following sentence? a caterpillar of butterfly on leaf
butterfly, caterpillar, leaf

What are the keywords in the following sentence? the manager does not think he has to win the fans over again despite their form
fan, think, win

What are the keywords in the following sentence? aerial video of a small river flowing through the forest at cloudy day .
day, flow, forest, river

What are the keywords in the following sentence? pilot landing a small plane after scenic flight
land, pilot, plane