In this task, you are given a premise, a hypothesis, and an update. The premise sentence describes a real-world situation and is always assumed to be true. The hypothesis sentence describes an assumption or inference that you might make about that situation having read the premise. The update provides additional information about the situation that might weaken or strengthen the hypothesis. A weakener is a statement that weakens the hypothesis, that is, it makes you much less likely to believe the hypothesis is true. A strengthener is a statement that strengthens the hypothesis, that is, it makes you much more likely to believe the hypothesis is true. Your task is to answer with 'strengthener' or 'weakener' if the update strengthens or weakens the hypothesis, respectively.

Example Input: Premise: Young rock wall climbers brave the massive structure with precision and ease.
Hypothesis: The climbers are big.
Update: The climbers are college students.
Example Output: strengthener

Example Input: Premise: A woman in a flower dress has attached a piece of green fabric with five wooden cylinders pushed through them to her waste and is stretching the fabric.
Hypothesis: The woman is sewing a new outfit.
Update: The woman sits down at a machine
Example Output: strengthener

Example Input: Premise: A gyro chef in a white jacket and cap looking at gyro meat.
Hypothesis: The chef is cooking the meat
Update: The chef is wondering if he made enough for today's orders.
Example Output:
weakener