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 woman and child are walking.
Hypothesis: The woman and the child are at the park.
Update: The child has the flu or cold.

A: weakener
****
Q: Premise: A pipe with one hand on it.
Hypothesis: The pipe is broken.
Update: The pipe was as good as new.

A: weakener
****
Q: Premise: A female speaker wearing a gray jacket, a dark scoop necked top with a dark knee length skirt is presenting to a group using a computer to present as well as a microphone at the podium.
Hypothesis: A college professor is giving a lesson in a big classroom.
Update: Tired students yawn in their seats.

A:
strengthener
****