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: A couple kissing on the neck on a busy street.
Hypothesis: The couple is male and female.
Update: The two people kissing are David and Emily.

SOLUTION: strengthener

PROBLEM: Premise: A smiling man with short brown hair in a black shirt with an open orange shoe box.
Hypothesis: The man is buying new shoes.
Update: The shoe box holds a big pile of receipts.

SOLUTION: weakener

PROBLEM: Premise: A child wearing Rollerblades and sitting on a curb.
Hypothesis: A boy has been playing street hockey and is now resting.
Update: The boy is giggling.

SOLUTION:
strengthener