What are the keywords in the following sentence? the members of the class visited greek revival structure for an educational day of science .
member, structure, visit

What are the keywords in the following sentence? waterfalls flowing in idyllic uncontaminated environment crossing green meadows and boulders in summer
boulder, cross, environment, meadow, waterfall

What are the keywords in the following sentence? The bears look like they are hugging each other.
bear, hug, look

What are the keywords in the following sentence? tree vs. car in the section after arrival .
car, section, tree