context: It is probably not the case that John discarded the milk. There is almost no chance that Mary got the apple. Chances are about even that Lily is a lion. There is almost no chance that if either Lily is a lion, or John discarded the milk, then Bill went to the garden. It is probably the case that if Mary got the apple, or John discarded the milk, then Brian is a frog. It is probably the case that if Lily is a lion, and Mary got the apple, then Greg is white.
hypothesis: We doubt that brian is a frog, or Bill went to the garden.
valid_hypothesis: We doubt that brian is a frog, or Bill went to the garden.
invalid_hypothesis: It is almost certain that brian is a frog, or Bill went to the garden.
hypothesis_assertion: Brian is a frog, or Bill went to the garden.