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 man with glasses is holding a very young infant.
Hypothesis: a man holds his niece
Update: They live in the same house.

Output: weakener


Input: Consider Input: Premise: Four men doing a martial arts stance in front of onlookers.
Hypothesis: Four men prepare to do martial arts in front of onlookers
Update: The men are all facing each other


Output: strengthener