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.
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Question: Premise: Two girls collide during a fast paced game of capture the flag in a park.
Hypothesis: The two girls are looking for a flag.
Update: The flag is in front of them on the side.

Answer: weakener


Question: Premise: A child in a green cap sits at a boats controls.
Hypothesis: watched by a group
Update: 3 women stare at him.

Answer: strengthener


Question: Premise: A woman and a man riding bikes in a city.
Hypothesis: Two people are on a biking date
Update: The couple have the same last name.

Answer:
weakener