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 turns and runs upstairs.

SOLUTION: He slips two books back into someone's cauldron.

PROBLEM: There are five people underwater with scuba gear holding hands and practicing.

SOLUTION: A black screen appears with white letters explaining it is about scuba diving.

PROBLEM: Wind blows the leaves as he approaches.

SOLUTION:
Remaining expressionless, someone walks towards them.