context: It is improbable that Jessica is a mouse. There is a better than even chance that Mary picked up the apple. It is likely that Greg is a lion. It is impossible that if Mary picked up the apple, or Greg is a lion, then Julius is a rhino. It is probably not the case that if Mary picked up the apple, and Greg is a lion, then Bernhard is yellow. It is impossible that if Mary picked up the apple, or Jessica is a mouse, then Daniel left the milk.
hypothesis: It is likely that either Jessica is a mouse, or Greg is a lion.
valid_hypothesis: It is likely that either Jessica is a mouse, or Greg is a lion.
invalid_hypothesis: We doubt that either Jessica is a mouse, or Greg is a lion.
hypothesis_assertion: Either Jessica is a mouse, or Greg is a lion.