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.

Ex Input:
Premise: A biker is racing downhill.
Hypothesis: driving competetion is going on
Update: Police officers on bikes are chasing the person

Ex Output:
weakener


Ex Input:
Premise: At the track, the man with the yellow 4-wheeler and black helmet, is going around the dirt road.
Hypothesis: The man with the yellow 4-wheeler is racing somebody.
Update: The man is by himself.

Ex Output:
weakener


Ex Input:
Premise: Toddler in blue shirt and beige khaki shorts and brown shoes, holding a small blue shovel, walking along beach shore with two white seagulls swooping towards him.
Hypothesis: The toddler is going to build a sandcastle.
Update: The child is very good at building sandcastles.

Ex Output:

strengthener


