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 woman and child are walking.
Hypothesis: The woman and the child are at the park.
Update: The child has the flu or cold.
Example Output: weakener

Example 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.
Example Output: strengthener

Example Input: Premise: A family enjoys the outside.
Hypothesis: A family having fun with a nice picnic.
Update: The family is playing on the tennis court.
Example Output:
weakener