What are the keywords in the following sentence? comedian arrives at the screening
arrive, comedian, screening

What are the keywords in the following sentence? As they wait for another carriage, someone joins them, carrying a cactus.
carriage, carry, wait

What are the keywords in the following sentence? The elephants are being led from the Barnum and Bailey circus train to a site on land.
elephant, lead, train

What are the keywords in the following sentence? Several dishes of food next to a seafood pizza.
dish, food, pizza