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.

Q: Premise: PersonX likes music
Hypothesis: Because he is like music
Update: PersonX sings loudly on stage.

A: strengthener
****
Q: Premise: PersonX moves toward the door
Hypothesis: Before, PersonX needed to turn around
Update: PersonX was heading out of the house.

A: weakener
****
Q: Premise: PersonX asks the girl out
Hypothesis: PersonX then goes on a date with the girl
Update: The girl is single.

A:
weakener
****