TASK DEFINITION: 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.
PROBLEM: Premise: Two parents sit on a couch while a girl in a pink sweater lounges across them.
Hypothesis: The two parents are married.
Update: The parents' children have different last names.

SOLUTION: weakener

PROBLEM: Premise: A man in yellow rain gear on a boat
Hypothesis: A man is getting soaked on the boat.
Update: The man wipes his face with a towel.

SOLUTION: strengthener

PROBLEM: Premise: A gray dog sits on a lawn wearing a bright blue long-sleeved jacket.
Hypothesis: The dog is dressed up for Halloween.
Update: It is snowing outside.

SOLUTION:
weakener