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.

Input: Consider Input: Premise: A boy is doing a stunt with his skateboard.
Hypothesis: A boy is doing tricks at a skate park.
Update: The boy is in his driveway.

Output: weakener


Input: Consider Input: Premise: Two young ladies are sitting at desks writing in notebooks.
Hypothesis: The girls are sitting at their desks.
Update: The desks are laid out in their schools gymnasium.

Output: weakener


Input: Consider Input: Premise: A man is instructing a young boy to use exercising equipment outside, while a man watches nearby.
Hypothesis: A man is joyously instructing a young boy
Update: The man instructing is jumping around excitedly.


Output: strengthener