premise: Sense of taste<br>Joseph looked forward to his birthday. He already tasted the chocolate on his taste buds. So when his birthday came, he was sitting with his fork at the ready. His mom put the cake in front of him. But the cake tasted like nothing and was a disappointing experience.
hypothesis: Joseph became an adult and cake didn't taste the same.
reason: We don't know if adulthood was the reason why.