What are the keywords in the following sentence? A trolley car moves down the tracks in a city.
car, move, track

What are the keywords in the following sentence? site listing category by tourist attraction
attraction, list, site

What are the keywords in the following sentence? american football player addresses the media after he was named interim head coach following the firing of coach
address, coach, medium, player

What are the keywords in the following sentence? a red train with yellow front and yellow stripe down the side
front, side, train