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 demonstrates some of the correct moves to properly roller skate.

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

PROBLEM: The person then goes into a shed and it continue to ski down the drive.

SOLUTION: A person is riding a wave behind a jetski.

PROBLEM: Someone peers down the stairs then at the large clockwork mechanism as he paces frantically.

SOLUTION:
Slick with sweat, he reaches the top.