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.

Ex Input:
Premise: A lady with a yellow blouse and glasses at a desk with a laptop computer.
Hypothesis: the computer is a dell
Update: The woman works for Dell.

Ex Output:
strengthener


Ex Input:
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.

Ex Output:
strengthener


Ex Input:
Premise: A man is riding a bicycle near a bus.
Hypothesis: The man is in the city.
Update: There are towering buildings all around the man.

Ex Output:

strengthener