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 people walking by a large stone wall.
Hypothesis: A lesbian couple is walking beside a wall.
Update: The two people are holding hands.

Output: strengthener


Input: Consider Input: Premise: Four people are wearing life jackets on a motorboat on still waters.
Hypothesis: The four people are about to compete in a fishing competition.
Update: None of the people have fishing rods.

Output: weakener


Input: Consider Input: Premise: Two race horses, one brown and the other gray, racing against each other.
Hypothesis: Two horses are in a field.
Update: A large crowd cheers the horses on.


Output: weakener