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.
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Question: Premise: Two boys playing on a trampoline.
Hypothesis: Two boys playing chess on a trampoline.
Update: There is a checkered board on top of the trampoline.

Answer: strengthener


Question: 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.

Answer: weakener


Question: Premise: A very happy baby in a yellow shirt swinging on swing.
Hypothesis: The child is being pushed on the swing by their mother.
Update: The baby laughs when He is caught my the woman

Answer:
strengthener