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 group of little girls jumping together in a backyard.
Hypothesis: A group of girls are laughing.
Update: The girls are alone with one another and they are not being told what to do by anyone
[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: Math problems are written on the chalkboard.
[A]: weakener


[Q]: Premise: An elderly person stands in the street during winter with evergreen tree branches in one hand and a cane in the other.
Hypothesis: an old woman stands in the street in the winter holding evergreen branches and a cane
Update: The person has a pin that says 'She/Her' pronouns.
[A]:
strengthener