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 woman wearing a neon jacket standing next to a large machine.
Hypothesis: The woman knows how to work the machine.
Update: The woman is considering adjustments to make the machine run more smoothly.
strengthener

Premise: A woman wearing a red hat and face paint smiles at another woman.
Hypothesis: A woman wearing clown face paint smiles.
Update: The woman is making balloon animals.
strengthener

Premise: Five girls wearing school uniforms walk around on a flat rock near a lake as a man in the background sits on the shore.
Hypothesis: One parent has brought daughter and friends to the lakehouse, for a weekend of fun on the lake.
Update: The school girls ditched their last class to go smoke cigarettes by the lake.

weakener