instruction:
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.
question:
Premise: A brown dog chases a blond one in the grass.
Hypothesis: A person watches a one dog chase another.
Update: The blonde dog ran toward the pet door leading into the kitchen.
answer:
weakener


question:
Premise: A boy in the woods.
Hypothesis: There is a boy headed to the woods.
Update: A police dispatcher says 'I see the guy walking towards the dark trees area'
answer:
strengthener


question:
Premise: Black bird flying with a leafy branch in its mouth.
Hypothesis: The bird flies low to the ground.
Update: The bird is landing near it's nest.
answer:

strengthener