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: A bearded man plays an instrument in front of a stone wall.
Hypothesis: The instrument is a tuba.
Update: The instrument is large and made of brass.

Answer: strengthener


Question: Premise: People hurrying to get to work in a busy city.
Hypothesis: People waiting at a bus stop.
Update: The people wait on the sidewalk as a bus pulls up by them.

Answer: strengthener


Question: Premise: A young toddler is playing with a dinosaur toy and a yellow block while sitting in the bathtub.
Hypothesis: A little boy enjoys his bath.
Update: The boy is laughing and splashing.

Answer:
strengthener