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.

Premise: Women dressed in theme costumes dance in a circle before an outdoor crowd.
Hypothesis: Women are celebrating Halloween.
Update: It is the month of may.
weakener

Premise: An older gentleman in a checkered shirt carrying milk jugs using a yoke.
Hypothesis: The man is going to get milk for his family by foot.
Update: The milk truck can be seen off in the distance.
weakener

Premise: A man sweeps outside while carrying a baby on his back in a holder.
Hypothesis: The man is sweeping leaves off his sidewalk.
Update: The man sweeps the sidewalk that is under some trees with colorful leaves.

strengthener