TASK DEFINITION: Given a sentence, generate a most likely context or previous statement. The previous statement should be relevant to the given statement.
PROBLEM: Meanwhile, someone feels around his desktop.

SOLUTION: Someone gives him a tight - lipped smile.

PROBLEM: a group of friends are standing on the field and above them the man is climbing the rock wall.

SOLUTION: Man is climbong a rock wall atached to harness.

PROBLEM: A woman is playing instruments behind him.

SOLUTION:
A man is playing piano as people in the room watch him.