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 boy giggled uncontrollably.
His brother tickled him.
[EX A]: cause

[EX Q]: The girl shared her lunch with her friend.
Her friend forgot to bring his lunch.
[EX A]: cause

[EX Q]: My flight got delayed.
Tornadoes were sighted in the area.
[EX A]:
cause