What are the keywords in the following sentence? A trio of zebra's leaned over eating hay on the ground.
eat, ground, hay, lean, zebra

What are the keywords in the following sentence? players huddle around coach during a break in the action .
action, coach, player

What are the keywords in the following sentence? student receiving a failed exam in a classroom
classroom, receive, student

What are the keywords in the following sentence? winding road on the island in the region
region, road, wind