What are the keywords in the following sentence? groups were gathered to protest the removal of this statue of military commander .
commander, gather, statue

What are the keywords in the following sentence? A bathroom with a toilet, tiled floor, and a see-through shower.
bathroom, floor, shower, tile, toilet

What are the keywords in the following sentence? coach breaks past footballer and football player during the match .
coach, footballer, player

What are the keywords in the following sentence? mushrooms covers bark of a dead tree
cover, mushroom, tree