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 dog in the snow.
Hypothesis: The puppy is frolicking in the snow.
Update: the dog has been with his owner for many years
Example Output: weakener

Example Input: Premise: Man painting over Graffiti in a station.
Hypothesis: The city worker re-paints the subway stations walls.
Update: The sign out front says BP.
Example Output: weakener

Example Input: Premise: A woman wearing rubber gloves is kneeling on the ground next to a few round, colorful, Chinese lanterns.
Hypothesis: A woman sets up a Chinese lantern display.
Update: the woman is redecorating her house.
Example Output:
weakener