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 boy in a red shirt riding a bike.
Hypothesis: A boy is riding a bike to school.
Update: It is a lovely Sunday afternoon.

Output: weakener


Input: Consider 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.

Output: weakener


Input: Consider Input: Premise: Man sings and plays guitar while another man plays guitar behind him.
Hypothesis: Two men perform as street musicians.
Update: The men are standing on a large stage with lights on them


Output: weakener