context: Thick clouds masked the sky for the Braun sponsored event as the crowd looked up at the raised platform while a small group of bike stunt riders watched one rider land on his feet while his bike was still in the air.
hypothesis: It is impossible that they are hoping that they get a chance to perform, because it looks like it might rain.
valid_hypothesis: There is a better than even chance that they are hoping that they get a chance to perform, because it looks like it might rain.
invalid_hypothesis: It is impossible that they are hoping that they get a chance to perform, because it looks like it might rain.
hypothesis_assertion: They are hoping that they get a chance to perform, because it looks like it might rain.