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: Three asian girls and one asian guy sitting in front of a volcano project
Hypothesis: Three fat asian girls and one asian guy sitting in front of a volcano project
Update: They're sitting with Doritos and Mtn. Dew

Ex Output:
strengthener


Ex Input:
Premise: A skydiver in a yellow parachute prepares for landing.
Hypothesis: A skydiver is sweating from nerves.
Update: The skydiver's face and hair are wet.

Ex Output:
strengthener


Ex Input:
Premise: Children ride a balloon ride in an amusement park.
Hypothesis: The children are enjoying their balloon ride.
Update: The children are laughing and waving.

Ex Output:

strengthener