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.

Input: Consider Input: Premise: People in blue t-shirts stand in the grass.
Hypothesis: People in blue t-shirts stand around talking about their lives.
Update: They are looking at pictures of one another's vacations on their smartphones.

Output: strengthener


Input: Consider Input: Premise: A man is kicking another man in the head inside of a red ring while another man watches.
Hypothesis: Tall humans kicking
Update: The men are over 6 feet tall.

Output: strengthener


Input: Consider Input: Premise: A woman in a brown dress sits on the lap of man, next to two women.
Hypothesis: A woman sits on a man's lap to make space for their friends.
Update: The park bench is very small.


Output: strengthener