What are the keywords in the following sentence? One woman is crossing a bridge over a narrow waterway.
bridge, cross, waterway

What are the keywords in the following sentence? some kind of mechanical clock that his hanging on a wall
clock, kind, wall

What are the keywords in the following sentence? silhouette of a fisherman throwing his net with sunset
fisherman, silhouette, sunset, throw

What are the keywords in the following sentence? spider eating a black bug that got caught in its web
bug, catch, spider