What are the keywords in the following sentence? a runner is cheered on as she heads south near the second mile .
head, mile, runner

What are the keywords in the following sentence? flying under forest in mountains .
fly, forest, mountain

What are the keywords in the following sentence? nurse giving an injection to a sick patient on a general ward .
nurse, patient, ward

What are the keywords in the following sentence? A piece of lasagna with cheese and vegetable.
cheese, piece, vegetable