What are the keywords in the following sentence? panning up the water flowing down a rocky mountain to a small waterfall
mountain, pan, waterfall

What are the keywords in the following sentence? steel framed building at a construction site ready for cladding with columns .
building, column, frame

What are the keywords in the following sentence? a squirrel hides in a tree .
hide, squirrel, tree

What are the keywords in the following sentence? A baby is sleeping with a stuffed bear.
bear, sleep, stuff