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 enjoying a drink at a bar top.
Hypothesis: A man enjoying a drink at a bar top while smoking.
Update: The man is addicted to cigarettes.
Example Output: strengthener

Example Input: Premise: A young girl does a handstand on a bed with blue sheets.
Hypothesis: A girl is practicing gymnastics on her bed.
Update: The girl has a headstand video up on YouTube that she is copying
Example Output: strengthener

Example Input: Premise: Shirtless man with gray hair and blue shorts, sitting on a stool at a table, next to a red beach chair and bicycle.
Hypothesis: The man is at the beach having lunch.
Update: The table is empty as the man looks off into the distance.
Example Output:
weakener