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 boy jumping over another boy on a trampoline.
Hypothesis: The two boys are related.
Update: The boys are of different races.
Example Output: weakener

Example Input: Premise: A group of people standing around in a room.
Hypothesis: the people are women
Update: They all stroke their beards.
Example Output: weakener

Example Input: Premise: Boys play cricket on a field.
Hypothesis: Small boys play a game.
Update: The boys just left their high school graduation.
Example Output:
weakener