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.

Example Input: Premise: PersonX gets PersonX's juices flowing
Hypothesis: PersonX is seen as full of adrenaline
Update: PersonX is writing a creative story
Example Output: weakener

Example Input: Premise: PersonX needs a new desk
Hypothesis: Before, PersonX needed get money to buy desk
Update: They are really rich
Example Output: weakener

Example Input: Premise: PersonX starts to talk
Hypothesis: As a result, PersonX feels social
Update: X goes from group to group greeting everyone by name.
Example Output:
strengthener