What are the keywords in the following sentence? coach delivers a press conference
coach, conference, deliver

What are the keywords in the following sentence? A kid showing the process to polishing his boots.
boot, kid, polish

What are the keywords in the following sentence? windows in a block of flats with a cloudy sky
block, flat, sky

What are the keywords in the following sentence? hints of autumn along road in mountains featuring cloudy peaks and endless rolling hills
autumn, hill, hint, mountain, road