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 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

Ex Output:
second


Ex Input:
People can eat for energy
People can play for energy

Ex Output:
second


Ex Input:
A grenade travels through explosive propulsion.
A grenade works through explosive detonation.

Ex Output:

first