What are the keywords in the following sentence? red cat and puppies hanging their paws over a white banner
cat, paw, puppy

What are the keywords in the following sentence? A cop gives a motorcylicst a ticket.
cop, give, ticket

What are the keywords in the following sentence? a candle burning at both ends
burn, candle, end

What are the keywords in the following sentence? flowers grow in the grass by the ruins of a small stone hut
grass, grow, hut