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.

Q: The motorcyclist twisted the throttle.
The motorcycle shot forward.

A: effect
****
Q: The man's arm muscles bulged.
He flexed his arms.

A: cause
****
Q: I turned on the fan.
I felt cool air pass over me.

A:
effect
****