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

Ex Input:
Someone turns and looks at someone.

Ex Output:
A teenage boy throws another rock as a pickup truck pulls up behind him.

Ex Input:
As he straightens up and prepares to jump.

Ex Output:
As it stretches for the railing; it is several inches short of touching it.

Ex Input:
Someone rises from the armchair and picks up the note.

Ex Output:
He slips it under the door.