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: Four adults and one child visit on a backyard patio.
Hypothesis: people are sitting and talking on their vacation
Update: The people look around like they haven't seen it before.

Output: strengthener


Input: Consider Input: Premise: Two hockey players trying to score in their opponents goal.
Hypothesis: two hockey players are looking for the puck
Update: They are both looking directly at the puck.

Output: weakener


Input: Consider Input: Premise: A man in a black suit with a white bowtie standing in the middle of a crowded room.
Hypothesis: The man is meeting with other well dressed men.
Update: There are many people present and a sign overhead reads 'President's Ball'


Output: strengthener