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.

Q: Premise: Man on roof touching a shingle.
Hypothesis: Human on top of bulding grabbing a shingle.
Update: The man moves his hands over to the chimney and hangs onto it.

A: weakener
****
Q: Premise: Hippies blow bubbles at a festival.
Hypothesis: The people are enjoying themselves.
Update: People are pushing, shoving and tripping over each other.

A: weakener
****
Q: Premise: A street performer entertaining a child.
Hypothesis: A clown is entertaining a child.
Update: The man is doing magic tricks.

A:
weakener
****