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.

Example Input: Premise: Three people in white clothes observe graffiti on the side of a building.
Hypothesis: The people in white are going to paint over the graffiti.
Update: the people take out cameras and take photos
Example Output: weakener

Example Input: Premise: A young boy dives to catch the ball during a baseball game.
Hypothesis: A young boy and his teammate both dive to catch a ball during the game.
Update: The boys collide and end up not even catching the ball.
Example Output: strengthener

Example Input: Premise: A black dog with an orange bandanna catches a white Frisbee.
Hypothesis: A black dog is playing Frisbee with children.
Update: The man leans on his cane while his dog fetches the toy.
Example Output:
weakener