What are the keywords in the following sentence? stained glass window depicting builder and book in the cathedral
book, cathedral, depict

What are the keywords in the following sentence? man resting on a hammock while boy and girl row in canoe on pristine rural lake
hammock, lake, rest

What are the keywords in the following sentence? evening in the port many ships and boats
boat, evening, port

What are the keywords in the following sentence? Skiers are making their way down a slope.
skier, slope, way