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: Three school boys posing under a blue umbrella.
Hypothesis: Some asian children posing for a picture in the rain.
Update: The three Hispanic children are sitting on the sunny beach under the umbrella.
weakener

Premise: Two people are stick fighting in black Asian style warrior garments.
Hypothesis: A person instructing his student in sword fighting.
Update: One person motions to the other in how to hold and maneuver the sword.
strengthener

Premise: A group of children and their parents are in front of a bounce house in the shape of a castle.
Hypothesis: Children and parents stand in front of a newly opened bounce house
Update: The children go to the bounce house every Friday after school.

weakener