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.

The boy was lost in the woods.
He screamed for help.
effect

The engine of the airplane was faulty.
The airplane crashed.
effect

The water in the teapot started to boil.
The teapot whistled.

effect