What are the keywords in the following sentence? a soldier takes a knee and provides security after exiting armed force
force, knee, provide, security

What are the keywords in the following sentence? a supporter holds poster during protest rally against organisation founder
poster, rally, supporter

What are the keywords in the following sentence? ship passing a city after leaving country
city, leave, pass, ship

What are the keywords in the following sentence? A biker travels through mud with his eyes focused on the road.
biker, eye, focus, mud, road