What are the keywords in the following sentence? The motorcycle riders travel on the mountain highway.
highway, rider, travel

What are the keywords in the following sentence? A toddler is on the grass with a frisbee over it's face.
frisbee, grass, toddler

What are the keywords in the following sentence? a balanced rock formation of sandstone known as us census designated place
census, designate, formation, place

What are the keywords in the following sentence? rolling hills and woods at the site of the abandoned town
hill, roll, wood