instruction:
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.
question:
The seasons changed from summer to autumn.
Leaves fell from the trees.
answer:
effect


question:
The man's arm muscles bulged.
He flexed his arms.
answer:
cause


question:
The city re-elected the mayor.
The mayor fulfilled his promises.
answer:

cause