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.

Example Input: Premise: A red PlNe is flying by the queen Elisabeth 2 shooting out red smoke.
Hypothesis: A plane is about to go down.
Update: There are bombs flying all around in the air.
Example Output: strengthener

Example Input: Premise: A man in a hat and coat is holding a pitchfork and posing for a picture.
Hypothesis: The man is on a farm
Update: There are chickens and cows all around him.
Example Output: strengthener

Example Input: Premise: a woman holding a small ball chasing after a small boy.
Hypothesis: the woman is chasing after her son.
Update: The woman and child is playing dodge ball.
Example Output:
strengthener