What are the keywords in the following sentence? chancellor of politician holds his briefcase which contains the budget
briefcase, budget, contain, hold, politician

What are the keywords in the following sentence? sheep grazing in front of a wind farm
front, graze, sheep

What are the keywords in the following sentence? scenic shots ws purple misty morning sky over horizon .
horizon, shot, sky

What are the keywords in the following sentence? hiking trail following old road an urban wilderness inside canadian province
province, trail, wilderness