Given a sentence, generate a most likely context or previous statement. The previous statement should be relevant to the given statement.

They start serving the ball.
Then the person in black misses the shot.

He is standing with several exercise balls behind him as he demonstrates how to use the jump rope.
There's a fitness expert dressed in a black shirt and a red hat demonstrating and talking about fitness training tips in a gym.

He sinks to his knees.

Someone creeps over to someone and crouches at his side.