What are the keywords in the following sentence? autumn mornings often begin with a damp fog until the sun burns it away .
burn, fog, morning

What are the keywords in the following sentence? demonstrations are held outside the headquarters in protest against leader
demonstration, hold, leader

What are the keywords in the following sentence? time lapse of clouds moving in the city
city, cloud, move

What are the keywords in the following sentence? His opponent seizes the hand and forces him to the ground.
force, ground, hand