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.

Example Input: The nation endured a natural disaster.
Leaders of other countries sent emergency relief.
Example Output: effect

Example Input: The boy's hair was sticking up.
The girl ruffled it.
Example Output: cause

Example Input: The screen on the laptop went black.
The laptop's battery died.
Example Output:
cause