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: Children sit in a classroom holding slates.
Hypothesis: The children are praticing math.
Update: The children are drawing pictures.

A: weakener
****
Q: Premise: Fans watching a basketball game indoors at a stadium.
Hypothesis: Fans watching a basketball game championship final indoors at a  local stadium.
Update: The man came in and told them their rental time was up.

A: weakener
****
Q: Premise: The brown, white and black dog runs on a gravel surface.
Hypothesis: Three dogs are running downhill.
Update: A sign above reads 'Greyhound Racetrack'

A:
weakener
****