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 studies her as she sits at her desk.

SOLUTION: He stares after her as she walks away through the open plan office.

PROBLEM: Next, the gymnast performs multiple flips on the pommel platform for a long time.

SOLUTION: After, the gymnast lay down on the floor, makes tuns and spins the hula ring around her neck and feet, then she stands on her arms while spinning the hula ring and bend down.

PROBLEM: the man flick the ball up and and play the ball in the air.

SOLUTION:
Man in the green grassy futball field start doing tricks with the foot and the ball showing how to do it.