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.

[Q]: Premise: A boat is illuminated at night.
Hypothesis: A boat is using the lights to see at night.
Update: There is a tug boat pulling up to the boat with men shining lights in to the boat.
[A]: weakener


[Q]: Premise: Boys play cricket on a field.
Hypothesis: Small boys play a game.
Update: The boys just left their high school graduation.
[A]: weakener


[Q]: Premise: The arm of a swimmer rises from the water inside the striped lane marker.
Hypothesis: The arm of a swimmer rises from the water in 1st place.
Update: The swimmer sees two people ahead of them.
[A]:
weakener