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.

Input: Consider Input: Premise: PersonX plants an apple tree
Hypothesis: PersonX then personX gets apples for free
Update: PersonX planted the tree in their backyard

Output: strengthener


Input: Consider Input: Premise: PersonX buys gifts for PersonX's family
Hypothesis: PersonX then goes shopping
Update: Person X was online shopping from a hospital bed.

Output: weakener


Input: Consider Input: Premise: PersonX needs to save money
Hypothesis: As a result, PersonX feels irresponsible
Update: PersonX has a high salary but nothing to show for it


Output: strengthener