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.

Q: Walking burns more calories than running.
Walking burns fewer calories than running.

A: first
****
Q: I employ a secretary to screen my calls
I employ a cleaner to screen my calls

A: second
****
Q: Of course the father was older than his own son.
Of course the son was older than his own father.

A:
second
****