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.

Example Input: Premise: A baby sleeping with a green Binky in its mouth.
Hypothesis: A baby is in a crib.
Update: The baby monitor blinks on the nearby dresser in the nursery.
Example Output: strengthener

Example Input: Premise: This is a painting of a group of people playing string instruments in a old building with many shiny glowing chandeliers.
Hypothesis: The painting shows the group of people in a very positive image.
Update: In the painting some of the people are frowning.
Example Output: weakener

Example Input: Premise: Balding man in sandals walking past a tree.
Hypothesis: A balding man is walking through the woods.
Update: The tree is made out of plastic.
Example Output:
weakener