What are the keywords in the following sentence? The horse is tied up to the post outside.
horse, post, tie

What are the keywords in the following sentence? starfish on the beach with red sunglasses
beach, starfish, sunglass

What are the keywords in the following sentence? art gallery is home to artworks and artifacts in the former main library opposite city hall .
hall, home, library

What are the keywords in the following sentence? refugees hoping to cross into continent arrive at the shore
cross, refugee, shore