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 biker is racing downhill.
Hypothesis: driving competetion is going on
Update: Police officers on bikes are chasing the person
Example Output: weakener

Example Input: Premise: A male Equestrian rider leans forward as his horse stretches out for the 2nd jump of the course, as the crowd looks on with amazement
Hypothesis: A male equestrian rider competes for the championship.
Update: The tournament has just only begun.
Example Output: weakener

Example Input: Premise: A black-haired woman in a white skirt and black boots is carrying a red bag and walking down the street.
Hypothesis: The black-haired woman is going shopping.
Update: She is walking along Rodeo Drive.
Example Output:
strengthener