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: This man is wearing a red helmet and flip-flops and driving a Spyder.
Hypothesis: A man driving a car to a dealer to have it tuned up.
Update: The man's Spyder glides down the road.

A: weakener
****
Q: Premise: Three girls in a marching band are wearing gold outfits and men are drumming behind them.
Hypothesis: Men drumming
Update: People with beards are holding drums and sticks.

A: strengthener
****
Q: Premise: Middle-age students sitting in rows of tables listening to a teacher sitting in front of room behind desk.
Hypothesis: The teacher is teaching the students about classic literature.
Update: The teacher holds up a book written by Chaucer.

A:
strengthener
****