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 gray dog is in grass.
Hypothesis: A dog is sitting in the grass
Update: The dog's tail cannot be seen because the dog's bottom is on the ground.
answer:
strengthener


question:
Premise: A boy who is next to a river smiles tentatively at the camera.
Hypothesis: a boy is smiling at the camera before he jumps in the river
Update: The boy is wearing a winter jacket.
answer:
weakener


question:
Premise: a young boy making a big mess on the floor and table while eating cereal
Hypothesis: A young boy eating breakfast is strewing his oatmeal about on otherwise clean surfaces.
Update: There is more cereal on the floor than in the boy's bowl.
answer:

strengthener