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 Q]: Premise: A female student concentrates on her schoolwork.
Hypothesis: A student is at school working on her schoolwork.
Update: The library is very quiet and a good place for her to finish her assignment.
[EX A]: strengthener

[EX Q]: Premise: Military men dressed in camouflage and white aim there weapons while out in the snowy weather.
Hypothesis: men have weapons
Update: They are looking in one direction and reaching for something at their sides.
[EX A]: strengthener

[EX Q]: Premise: The woman is holding a camera and standing on a brick wall.
Hypothesis: The woman is on the wall finding the right angle for a photo.
Update: The camera is attached to a tripod.
[EX A]:
weakener