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: There are three people on the dock by the boats.
Hypothesis: Three people prepare for a fishing trip.
Update: The people are wearing search and rescue gear

Output: weakener


Input: Consider Input: Premise: A boat is illuminated at night.
Hypothesis: A boat is using the lights to see at night.
Update: There is a tug boat pulling up to the boat with men shining lights in to the boat.

Output: weakener


Input: Consider Input: Premise: A young child leads a large dog on the shore.
Hypothesis: The boy and his dog are following a group of children on the beach.
Update: The children are on a school trip and are ready to head home.


Output: strengthener