context: It is probably not the case that Bernhard is a rhino. There is almost no chance that Bill dropped the apple. It is likely that Mary left the milk.
hypothesis: It is probable that either Mary left the milk, or Bill dropped the apple.
valid_hypothesis: It is probable that either Mary left the milk, or Bill dropped the apple.
invalid_hypothesis: It is impossible that either Mary left the milk, or Bill dropped the apple.
hypothesis_assertion: Either Mary left the milk, or Bill dropped the apple.