What are the keywords in the following sentence? An uncooked pizza with meat, olives, onions, cheese and sauce.
cheese, onion, pizza

What are the keywords in the following sentence? flowers placed by fans on star .
flower, place, star

What are the keywords in the following sentence? lambs and a sheep on green grass with a blue sky
grass, sheep, sky

What are the keywords in the following sentence? nurse and doctors in a hospital
doctor, hospital, nurse