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: An african american woman wearing an orange dress with a hood is covering her face with her hand while sitting in a chair.
Hypothesis: The woman in the orange dress is playing peek-a-boo with her brother's toddler.
Update: A child squeals and laughs at its aunt.
Example Output: strengthener

Example Input: Premise: Several men helping each other pull in a fishing net.
Hypothesis: The men are fishing.
Update: There is an old tire in the net.
Example Output: weakener

Example Input: Premise: One young girl with brown hair is smiling and talking to a young girl with blond-hair.
Hypothesis: The girls are sisters.
Update: The blond girl's mother calls her in for dinner and the brown haired girl goes home.
Example Output:
weakener