Given a sentence, generate a most likely context or previous statement. The previous statement should be relevant to the given statement.

Ex Input:
He keeps the ad, and looks at it with a sober expression.

Ex Output:
It's the attachment someone forwarded to all employees.

Ex Input:
Several still images of the boy and the man, sometimes with other people, are shown in front of he sand castle at various stages of completion.

Ex Output:
A woman walks from right to left in the background.

Ex Input:
The man puts more white shirt on the living area and picks up a different shoe and demonstrates.

Ex Output:
The man cleans his shoes.