What are the keywords in the following sentence? the sun is sinking low in the sky by the time our day ends .
day, sink, sky, sun

What are the keywords in the following sentence? visit tourist attraction where elephant drink simultaneously in the afternoon .
afternoon, attraction, visit

What are the keywords in the following sentence? towing a boat along the beach in a city
beach, boat, tow

What are the keywords in the following sentence? He gives his mother an anguished look, his brow creased.
brow, give, look