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: 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 man wearing all black plays a coffee-burst bass guitar with a band.
Hypothesis: A man is playing with his band in a garage.
Update: There are many onlookers seated in the audience.
Example Output: weakener

Example Input: Premise: Girl in striped dress holding woman's hand.
Hypothesis: A girl is holding her mother's hand.
Update: The girl and woman look alike.
Example Output:
strengthener