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: Only birds can fly
Only humans can fly
Example Output: second

Example Input: Something you might do while cleaning is wash windows
Something you might do while cleaning is break windows
Example Output: second

Example Input: The shelf fits on the book.
The book fits on the shelf.
Example Output:
first