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: A group of volunteers help build a house on behalf of Habitat for Humanity.
Hypothesis: Tall beings building
Update: The group of volunteers are average height.
weakener

Premise: A brown dog splashing through a puddle on a lawn
Hypothesis: The dog plays in the puddle during the rainstorm.
Update: Its owner took it to the dog park
strengthener

Premise: A man stands in front of a microphone wearing glasses and looking at a piece of paper.
Hypothesis: a man looking at paper that has a love note on it
Update: The man is making an announcement about the brown acid.

weakener