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: If you don't know how to solve the problem, just answer it
If you don't know how to solve the problem, just skip it

A: first
****
Q: Walking burns more calories than running.
Walking burns fewer calories than running.

A: first
****
Q: You may find a tooth in your ear
You may find a tooth in your mouth

A:
first
****