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 family moved into a bigger house.
The mother gave birth to twins.
Example Output: cause

Example Input: The man dropped food on the floor.
His dog ran over to eat the food.
Example Output: effect

Example Input: Cars moved to the shoulder of the road.
A screaming ambulance approached.
Example Output:
cause