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: Two smiling people with dark hair.
Hypothesis: Two people are happy and smiling at a joke.
Update: They are at a comedian's performance.
strengthener

Premise: A little boys is enjoying a blue lollipop.
Hypothesis: The boy is wearing a baseball cap.
Update: the boy's hair is visible, blonde and spiky
weakener

Premise: A biker in spandex riding on a busy street.
Hypothesis: A biker is coming home from work.
Update: The biker is in formation with dozens of others.

weakener