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 lowers his regretful gaze.

SOLUTION: Blinking resignedly, someone looks at someone who snatches the gun away.

PROBLEM: The man tries to throw him off, but someone squeezes his throat relentlessly.

SOLUTION: Someone's back leaves a dent in the plaster wall.

PROBLEM: The man smiles at the camera.

SOLUTION:
A man faces the camera in front of a white wall with logos.