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 brown dog running along a dirt road.
Hypothesis: A brown dog is outside
Update: The dog was amoungst the horses in a large trailer.
Example Output: weakener

Example Input: Premise: The lady with the red-hair, blue, orange, and maroon jacket is getting photographed by a woman wearing a blue sweater in front of a clothing store, judging by that mannequin.
Hypothesis: woman is modeling
Update: The woman is talking on the phone.
Example Output: weakener

Example Input: Premise: A group of children gather around a white dog on the grass outside.
Hypothesis: children gather around a dog to hurt it
Update: The dog looks afraid and the children are all frowning.
Example Output:
strengthener