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 person lying outside reading a book during the day.
Hypothesis: A student studies outside on a sunny day.
Update: The person is wearing sunblock.

A: strengthener
****
Q: Premise: Bikini-clad female at the beach doing a cartwheel.
Hypothesis: There is a woman near the water.
Update: Her feet land in the water.

A: strengthener
****
Q: Premise: People watching other people across the street who are in trouble.
Hypothesis: People are staring at others who are trapped in a flood.
Update: The people watch others drown.

A:
strengthener
****