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: A man in a tan jacket with a rather intense stare.
Hypothesis: A man is staring at someone he wants to fight
Update: the man goes over to the other man and shoves him
[EX A]: strengthener

[EX Q]: Premise: A woman with red-hair is wearing sunglasses.
Hypothesis: The woman is outside.
Update: She is strolling on the beach.
[EX A]: strengthener

[EX Q]: Premise: A man in some sort of establishment, smiling while he is taking off or putting on glasses.
Hypothesis: A man is inside the optometrist office and is trying on new glasses.
Update: A man in a white coat is helping him out
[EX A]:
strengthener