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 are standing next to a waterway canal.
Hypothesis: People walk along the canal
Update: someone is pointing a camera at them.

Output: weakener


Input: Consider Input: Premise: An older man using a microscope to have more finesse in woodworking.
Hypothesis: man teaches new technique
Update: Nobody is watching the man.

Output: weakener


Input: Consider Input: Premise: A dog runs down a dirt road.
Hypothesis: A dog chases a bird down a road.
Update: The dog is playing with the bird in the bedroom


Output: weakener