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.

Q: Premise: A young boy in red swim shorts playing with sand on a beach.
Hypothesis: A boy is building a sandcastle.
Update: He uses a shovel to dig a moat.

A: strengthener
****
Q: Premise: A young girl wearing a yellow soccer jersey is running on a field.
Hypothesis: A girl is running to chase a soccer ball during a game.
Update: The field is full of children in street clothes.

A: weakener
****
Q: Premise: A girl kisses her mother goodbye before she waits with the other children to start school.
Hypothesis: A girl is reluctant to leave her mother as she goes to wait for school.
Update: The girl is scared because it is her first day of school

A:
strengthener
****