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

Ex Input:
In the background, a waitress holds up a tray.

Ex Output:
They are crowded in with people.

Ex Input:
Someone is reading a telegram he has just received.

Ex Output:
Someone, the high school principal, is the next donor.

Ex Input:
He grabs the book and whacks it over someone's head.

Ex Output:
The boys fight over the book.