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.

Input: Consider Input: Some giraffes live in the spaghetti
Some giraffes live in the serengeti.

Output: first


Input: Consider Input: a butterfly used to be an egg
a butterfly used to be a caterpillar

Output: first


Input: Consider Input: pencil is made of iron
hammer is made of iron


Output: first