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 yellow car is creating smoke by spinning its tires.
Hypothesis: A car is being driven dangerously in the street.
Update: The driver doesn't realize he left the parking brake on before exiting the lot.
answer:
weakener


question:
Premise: A man is wearing a green shirt and a welders mask.
Hypothesis: A man is hiding his identity.
Update: He stops every few yards, lifts the face piece while looking all around then returns it and goes a few more yards.
answer:
strengthener


question:
Premise: A lit food cart is parked on the street at dusk.
Hypothesis: A good cart is parked on the street at dusk awaiting customers coming home from work
Update: The lines at the cart are often 20 people long.
answer:

strengthener