What are the keywords in the following sentence? silhouette of young attractive friends watching romantic sunset at cruising ship in the sea
sea, silhouette, sunset, watch

What are the keywords in the following sentence? mughal structure is a white marble mausoleum built by monarch in memory of his third wife
build, mausoleum, monarch

What are the keywords in the following sentence? aerial view of big cargo ship full of containers docking at the pier in the port
dock, port, ship, view

What are the keywords in the following sentence? field of study in which unrelated organisms come to resemble each other
field, organism, study