What are the keywords in the following sentence? airport has become a desolate space with empty buildings since country bulldozed many of its structures
building, country, structure

What are the keywords in the following sentence? earth orbiting around the sun
earth, orbit, sun

What are the keywords in the following sentence? large block retaining walls on each side of the driveway .
driveway, retain, side, wall

What are the keywords in the following sentence? the cyclonic storm was earlier expected to be moving towards indian states but it subsequently changed direction .
direction, move, storm