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: 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

Example Input: Premise: Two women in exotic red costumes are dancing.
Hypothesis: Two woman are dancing the samba.
Update: The women are Latina
Example Output: strengthener

Example Input: Premise: child sitting on stone wall surrounded by leaves
Hypothesis: A child sits on a stone wall in Fall.
Update: There are a variety of colors in the background of the photo.
Example Output:
strengthener