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 observes the other people in the room.

SOLUTION: Someone looks a bit out of place, his face being unshaven and heavily bruised.

PROBLEM: A few rows behind him, a perky blond girl laughs with her friends.

SOLUTION: Someone draws on his window a picture of a gorilla being attacked by three airplanes.

PROBLEM: Someone rises and looks away.

SOLUTION:
He closes the curtains, collapses on the bed, on top of the covers, inert.