In this task, you are given two natural language statements with similar wording. You must choose the statement that makes less sense based on common sense knowledge. A '
' separates the statements. Use "first" or "second" to indicate which sentence makes less sense.

Ex Input:
A keystone helps support an arch
A branch helps support an arch

Ex Output:
second


Ex Input:
People wear gloves on their feet to keep them warm.
People wear gloves on their hands to keep them warm.

Ex Output:
first


Ex Input:
Cats are reptiles
Cats are mammals

Ex Output:

first