TASK DEFINITION: Given a sentence, generate a most likely context or previous statement. The previous statement should be relevant to the given statement.
PROBLEM: Someone hands him a photo - sized envelope.

SOLUTION: He holds out his hand.

PROBLEM: He dismounts and lands on a mat.

SOLUTION: A man is doing a gymnastics routine on parallel bars.

PROBLEM: Someone dives off into the rising water.

SOLUTION:
A blast consumes the entryway landing, taking several men with it.