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 small group of people are in a small red boat and it is in the air over the ocean.
Hypothesis: The people in the boat are being rescued.
Update: The people haven't eaten for five days.

Output: strengthener


Input: Consider Input: Premise: A young girl is holding an end of the string of a yo-yo in one hand and the body of the pink yo-yo in the other.
Hypothesis: A girl is holding a yo-yo for her friend.
Update: The girl does tricks with the yo-yo.

Output: weakener


Input: Consider Input: Premise: A large brown dog leans into the water from the grassy shore.
Hypothesis: A dog saw something interesting in the water.
Update: The dog stares intently at the water.


Output: strengthener