TASK DEFINITION: Given a sentence, generate a most likely context or previous statement. The previous statement should be relevant to the given statement.
PROBLEM: In one of the lifeboats someone beats off panicked passengers with an oar.

SOLUTION: People reunite in the crowd.

PROBLEM: Someone picks up a guitar.

SOLUTION: Later, he and someone stroll through the guitar section of a music store.

PROBLEM: He is sitting there with fishing equipment fishing on the frozen lake.

SOLUTION:
A man dressed in winter gear is sitting out in winter on a frozen lake.