TASK DEFINITION: Given a sentence, generate a most likely context or previous statement. The previous statement should be relevant to the given statement.
PROBLEM: The boy, now older, plays an electric guitar.

SOLUTION: The boy rides on a miniature railway.

PROBLEM: Someone picks up a guitar.

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

PROBLEM: The man leans back and laughs.

SOLUTION:
The man drinks from his cup.