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: 3 team members, wearing 3 uniforms, are jumping towards the volleyball nets to block an opposing teams, wearing a yellow uniforms, spike.
Hypothesis: they are playing volleyball for the championship
Update: The teams are playing more intensely than they have before.
Example Output: strengthener

Example Input: Premise: A child in school, holding a ball as she points a the frisbee.
Hypothesis: A girl is playing with her peers.
Update: The child is talking to somebody
Example Output: strengthener

Example Input: Premise: Two blue inflatable rafts are involved in a collision on white water.
Hypothesis: There are more than two rafts on the white water.
Update: There are two people in the white water.
Example Output:
weakener