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: A man with glasses is holding a very young infant.
Hypothesis: a man holds his niece
Update: They live in the same house.

Output: weakener


Input: Consider Input: Premise: Two women of Asian descent walk beside a city street busy with cars.
Hypothesis: Two women are carrying grocery bags down the street.
Update: They hurry along, each carrying at least two grocery bags in each hand.

Output: strengthener


Input: Consider Input: Premise: Two toddlers sitting in mom's lap.
Hypothesis: Two toddlers are being comforted by their mother after falling off the slide.
Update: The toddlers have skinned up knees.


Output: strengthener