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 Input:
A drought occurred in the region.
The crops perished.

Ex Output:
effect


Ex Input:
The boy's back ached.
His backpack was heavy.

Ex Output:
cause


Ex Input:
The bully stuck his foot out in front of his classmate.
The bully's classmate tripped.

Ex Output:

effect