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.

Premise: A young blond child playing
Hypothesis: The small child is busily building a truck with is legos.
Update: The child's little tongue  is slightly stuck out as the child concentrates on making the wheels even with the small blocks.
strengthener

Premise: Man with children near a bench in a suburban area.
Hypothesis: Tall humans near a bench
Update: The man is eye level with the children.
weakener

Premise: The man leads his black and white dog across a blue obstacle.
Hypothesis: The dog is a border collie.
Update: The dog has short fur.

weakener