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]: I left work early.
I had a headache.
[EX A]: cause

[EX Q]: The man raised his eyebrows.
He was surprised.
[EX A]: cause

[EX Q]: I wrote a thank-you note to my grandmother.
She sent me a gift.
[EX A]:
cause