What are the keywords in the following sentence? coach breaks through the tackle of athlete and man during the match
athlete, coach, tackle

What are the keywords in the following sentence? statue looks towards the sky .
look, sky, statue

What are the keywords in the following sentence? visit national park and discover a landscape unlike any other in the world .
landscape, park, visit, world

What are the keywords in the following sentence? A train on a train track at a train depot.
depot, track, train