What are the keywords in the following sentence? A boy on a snowboard looks down a hill.
hill, look, snowboard

What are the keywords in the following sentence? slow motion of a racing car drifting the turn during a race
car, race, turn

What are the keywords in the following sentence? hundreds of military equipment and troops wait to be loaded on the ship
equipment, ship, troop

What are the keywords in the following sentence? A zebra and an ostrich standing in a large grassland.
ostrich, stand, zebra