What are the keywords in the following sentence? highway in countryside with forest and wheat fields on a summer day
countryside, day, field

What are the keywords in the following sentence? soccer player closes down footballer during the second half
close, footballer, player

What are the keywords in the following sentence? A toilet missing it's top lid on some gravel.
lid, miss, toilet

What are the keywords in the following sentence? crew replacing roof on a middle class home seen from above
crew, home, roof