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.

Example Input: Premise: A man with a beard is sitting on red painted steps.
Hypothesis: A man sits on his steps.
Update: The man is outside his home.
Example Output: strengthener

Example Input: Premise: A little boy dressed in shorts lies on a rock.
Hypothesis: The little boy is sitting in the sun
Update: It is night time.
Example Output: weakener

Example Input: Premise: Inside a bar there are people with red shirts.
Hypothesis: Only the guys in the bar wear red.
Update: A woman in the bar is wearing red high heels
Example Output:
weakener