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.
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Question: Premise: Two parents sit on a couch while a girl in a pink sweater lounges across them.
Hypothesis: The two parents are married.
Update: The parents' children have different last names.

Answer: weakener


Question: Premise: A man standing in a white shirt is conducting a small group of violin players.
Hypothesis: Bob is conducting a small group.
Update: The man's birth certificate says Robert.

Answer: strengthener


Question: Premise: A man with a plaid shirt riding a bike going down a brick road with blue fence segments in the distance.
Hypothesis: The man is wearing brown shoes.
Update: The man has their flip flops in their back shorts pocket while they pedal

Answer:
weakener