What are the keywords in the following sentence? tennis player pulls a face at the umpire in his semifinal match against tennis player during day
match, player, umpire

What are the keywords in the following sentence? Plate of pancakes with butter, syrup, and bowl of corn.
bowl, plate, syrup

What are the keywords in the following sentence? A skier follows a trail through some trees.
follow, skier, trail

What are the keywords in the following sentence? A pizza that has pepperoni, olives, onion, bell pepper, and mushroom.
olive, pepper, pepperoni, pizza