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

[Q]: Someone turns and looks at someone.
[A]: A teenage boy throws another rock as a pickup truck pulls up behind him.

[Q]: Someone collapses to his knees, then falls face down on the floor.
[A]: Someone yanks out a handful of green goo.

[Q]: He returns to the door.
[A]:
His bag topples candles on the coffee table.