TASK DEFINITION: Given a sentence, generate a most likely context or previous statement. The previous statement should be relevant to the given statement.
PROBLEM: He lifts a weight over his head several times.

SOLUTION: A weight lifter walks up to a bar bell.

PROBLEM: He demonstrates some of the correct moves to properly roller skate.

SOLUTION: A man talks about the best practices to prepare to roller skate.

PROBLEM: She forces an amused smile.

SOLUTION:
Someone sees someone talking to someone.