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.

[EX Q]: Premise: A lady walks up the steps from a subway.
Hypothesis: The woman is walking home from the train.
Update: The sun is rising.
[EX A]: weakener

[EX Q]: Premise: The three girls sat on the beach.
Hypothesis: The three girls sat on the beach gazing at the water.
Update: A clown is performing at the beach today.
[EX A]: weakener

[EX Q]: Premise: Boy in black shorts sliding on black surface covered with water with green trees in the background.
Hypothesis: The boy slides down a wet slide in the park
Update: Multiple large water slides can be seen in the background.
[EX A]:
strengthener