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 girl playing an electric guitar.
Hypothesis: A funny human playing guitar
Update: The girl is crying
Example Output: weakener

Example Input: Premise: Erotic show with guests looking onwards.
Hypothesis: Some guests are relatives.
Update: There are two people who look identical to one of the dancers.
Example Output: strengthener

Example Input: Premise: The photographer is holding up a disc that has an image on it that looks similar to the gentleman he is taking a picture of.
Hypothesis: The photographer is reviewing a photo he just took a picture of.
Update: The photographer lost all the images he took the week before and has to redo the shots.
Example Output:
weakener