TASK DEFINITION: Given a sentence, generate a most likely context or previous statement. The previous statement should be relevant to the given statement.
PROBLEM: The people demonstrate how to do back and tricks while others watch on their sides.

SOLUTION: A large group of people are seen standing on a mat and performing a routine with one another.

PROBLEM: a group of friends are standing on the field and above them the man is climbing the rock wall.

SOLUTION: Man is climbong a rock wall atached to harness.

PROBLEM: He looks across the room at someone, whose hair, which had been pulled tight, is now loose.

SOLUTION:
He picks up a can and drinks from it.