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. It makes you much less likely to believe the hypothesis is true. A strengthener is a statement that strengthens the hypothesis. It makes you much more likely to believe the hypothesis is true. Your task is to output 'strengthener' or 'weakener' if the update strengths or weakens the hypothesis, respectively.
PROBLEM: Premise: PersonX gives under PersonY hand
Hypothesis: PersonX is seen as defeated
Update: Person X was using Person Y's momentum against them.

SOLUTION: weakener

PROBLEM: Premise: PersonX buys a new bike
Hypothesis: As a result, PersonX wants to get a helmet
Update: PersonX previous helmet is broken

SOLUTION: strengthener

PROBLEM: Premise: PersonX looks like a PersonY
Hypothesis: Before, PersonX needed to mimic PersonY
Update: PersonX is related to PersonY.

SOLUTION:
weakener