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: A blond woman in a green tank top rides her bicycle in front of an apartment building.
Hypothesis: The blonde woman rides back and forth in front of the apartment building hoping to see her boyfriend.
Update: The woman hopes the bouncing of her breasts in the tight green shirt will get her boyfriend to notice her.
Example Output: strengthener

Example Input: Premise: A man with two dogs on a beach
Hypothesis: A man is chasing two dogs on a beach.
Update: The dogs got off of their leashes.
Example Output: strengthener

Example Input: Premise: Man posing, while holding a glass in his hand.
Hypothesis: A man is posing with aged scotch in a glass.
Update: He wishes someone would hurry up and take his picture so he could have a drink.
Example Output:
strengthener