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.

Premise: A man is biting his tongue while throwing some food and attempting to catch it in a frying pan.
Hypothesis: The man is psychotic.
Update: The man is a TV chef known for his unconventional presentation style.
weakener

Premise: Four adults and one child visit on a backyard patio.
Hypothesis: people are sitting and talking on their vacation
Update: The people look around like they haven't seen it before.
strengthener

Premise: A man in a black suit with tie and corsage smiles at a girl who smiles back, both are sitting at a table at a semi formal event such as a wedding or reunion.
Hypothesis: the man is a businessman
Update: The corporate sponsor of the event gave a warm welcome.

strengthener