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.

Example Input: Premise: Two men sitting on their living floor.
Hypothesis: Two men play video games in the living room.
Update: They are eating a pizza.
Example Output: weakener

Example Input: Premise: Two men are climbing up a steep rock face with moss growing out of it.
Hypothesis: Two men are climbing up a steep rock face to meet someone.
Update: They are leading the way in a rock climbing competition.
Example Output: weakener

Example Input: Premise: A man is carrying six wooden logs over his left shoulder while holding another log in his right hand.
Hypothesis: A man carrying seven logs is on a construction site.
Update: There is a nearby log cabin.
Example Output:
weakener