TASK DEFINITION: Given a sentence, generate a most likely context or previous statement. The previous statement should be relevant to the given statement.
PROBLEM: He looks at her, tired and pleased.

SOLUTION: She draws back quickly and looks down, terrified at what she has said.

PROBLEM: He chalks lines through four more.

SOLUTION: He's chalked architectural firms names on his wall.

PROBLEM: The girl then pulls herself back and fourth on the machine while the camera captures her movements.

SOLUTION:
She then grabs the lever in front and begins pulling herself.