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.

[EX Q]: Premise: Several people standing in the street.
Hypothesis: people were waiting for the light to change so they could cross
Update: The police officer was holding them up with his hand.
[EX A]: strengthener

[EX Q]: Premise: A slender man, shirtless with tattoos, carries his skateboard while making a displeased face.
Hypothesis: A shirtless man with a skateboard is unhappy that he didn't win a contest
Update: The man just checked his bank account balance and found it was overdrawn.
[EX A]: weakener

[EX Q]: Premise: Four people, two of whom can be seen wearing conference badges, are grouped around a long table with several laptops on it.
Hypothesis: The people are signing up for the conference.
Update: They also are wearing an employee badge on checking people in.
[EX A]:
weakener