In this task your given two statements. You must judge whether the second sentence is the cause or effect of the first one. Label the instances as "cause" or "effect" based on your judgment. The sentences are separated by a newline character.

[EX Q]: The man's arm muscles bulged.
He flexed his arms.
[EX A]: cause

[EX Q]: The truck collided with the car.
The car got smashed.
[EX A]: effect

[EX Q]: The woman felt nostalgic.
She ran into a childhood friend.
[EX A]:
cause