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 lays the guitar off his lap.

SOLUTION: In a guy's room, someone learns to play guitar.

PROBLEM: He is wake boarding behind a boat.

SOLUTION: A boat pulls a man up in the water.

PROBLEM: Someone turns away with a stony expression.

SOLUTION:
With gun, the man convulses then falls limp.