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 blond little boy is standing by a fence.
Hypothesis: The boy is waiting for his friends to come over.
Update: he is waving to boys walking towards him.
strengthener

Premise: A woman is sitting on a chair outdoors with a microphone near her mouth and an instrument on her lap.
Hypothesis: A woman sings into a microphone.
Update: She begins to hum and play her instrument.
strengthener

Premise: A asian women walks to a pillar next to a building.
Hypothesis: an woman walks to a building to paint a pillar
Update: She has a paint brush in one hand and can of paint in the other.

strengthener