What are the keywords in the following sentence? rabbits in the grass at garden
garden, grass, rabbit

What are the keywords in the following sentence? special force police officers stand guard outside a high school on the first day of exams
day, guard, officer, stand

What are the keywords in the following sentence? A batter up at bat waiting for a pitch.
batter, pitch, wait

What are the keywords in the following sentence? love the smell of a spring morning after rain
love, rain, smell