context: It is likely that John moved to the garden. We believe that Greg is a frog. There is almost no chance that Bernhard is a lion. Chances are about even that if either Greg is a frog, or John moved to the garden, then Emily is a cat. We doubt that if either John moved to the garden, or Greg is a frog, then Julie is in the bedroom. There is a very good chance that if either John moved to the garden, or Greg is a frog, then Bill dropped the milk.
hypothesis: There is a very good chance that either Bernhard is a lion, or Emily is a cat.
valid_hypothesis: It is unlikely that either Bernhard is a lion, or Emily is a cat.
invalid_hypothesis: There is a very good chance that either Bernhard is a lion, or Emily is a cat.
hypothesis_assertion: Either Bernhard is a lion, or Emily is a cat.