What are the keywords in the following sentence? athlete is treated for an injury on the pitch .
athlete, injury, pitch

What are the keywords in the following sentence? from a temporary exhibit featuring art work by painting artist
exhibit, feature, painting, work

What are the keywords in the following sentence? A spool of orange yarn with a pair of scissors
pair, scissor, spool, yarn

What are the keywords in the following sentence? friends chatting at the park .
chat, friend, park