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 splashes his face and dries it with a purple towel.

SOLUTION: He shaves his face once more.

PROBLEM: She empties his drink into one empty glass.

SOLUTION: Someone empties his glass and slaps it on the shelf next to someone.

PROBLEM: Someone sits in the back.

SOLUTION:
Someone is driving, someone next to her.