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.

Example Input: Chinese pizza is well-known around the world
Italian pizza is well-known around the world
Example Output: first

Example Input: A keystone helps support an arch
A branch helps support an arch
Example Output: second

Example Input: A person who is studying at a university or other place is called student
A person who is studying at a university or other place is called teacher
Example Output:
second