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 opens his rear door and gets out.

SOLUTION: The police car pulls up on the roadway behind him, and someone comes into scene.

PROBLEM: He is wake boarding behind a boat.

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

PROBLEM: Someone crouches down for a better look at one and reaches out to it.

SOLUTION:
Someone moves deeper in through the evenly spaced urns.