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

He speaks with his hands and then he demonstrates how to play the instrument.
A man is giving instructions about playing the congo.

The troll then walks up to someone, who has fallen on the ground.
Unfazed by the bullets, he crushes the last deputy's head.

The class stops and the instructor talks and walks around them.
A class of children dressed in white gi's are walking, kicking and punching in a classroom while their teacher walks around them.