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.

[EX Q]: Premise: Two little girls reading and a baby listening.
Hypothesis: The baby is the girl's sibling.
Update: They are sitting on a living room floor, surrounded by their toys.
[EX A]: strengthener

[EX Q]: 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.
[EX A]: strengthener

[EX Q]: Premise: A man, wearing a black and white wetsuit, is hanging onto a rope being pulled by a boat and is sideways over the water.
Hypothesis: A man wears a wetsuit in the water.
Update: The man is in a parasail.
[EX A]:
weakener