TASK DEFINITION: Given a sentence, generate a most likely context or previous statement. The previous statement should be relevant to the given statement.
PROBLEM: People are standing on the side of the hill.

SOLUTION: Someone stands on top of a dirt hill.

PROBLEM: It swings open revealing a stunned someone on her cellphone.

SOLUTION: Someone faces a door and knocks.

PROBLEM: Someone grabs the steward by the scruff and throws him off the train.

SOLUTION:
Someone opens the exterior compartment door.