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.

Input: Consider Input: Premise: two girls wearing a yellow shirt, one wearing a green shirt, and the last wearing a pink are each looking to the side
Hypothesis: Girls are looking at a sign on the wall.
Update: They all have a crush on the boy walking by.

Output: weakener


Input: Consider Input: Premise: A diver swims past a school of colorful fish.
Hypothesis: The diver is a scientist studying fish.
Update: The diver has a camera and notes.

Output: strengthener


Input: Consider Input: Premise: two females, one in a pink top the other in white, walking down a street
Hypothesis: Two females walking outside walking to the mall.
Update: The females are carrying shopping bags.


Output: strengthener