context: There is a better than even chance that Mary went to the kitchen. It is improbable that Brian is a frog. Chances are slight that Bernhard is a swan. It is almost certain that if Bernhard is a swan, or Brian is a frog, then Julius is yellow. There is little chance that if Mary went to the kitchen, or Bernhard is a swan, then John discarded the milk. It is probably not the case that if Brian is a frog, or Bernhard is a swan, then Lily is white.
hypothesis: We believe that brian is a frog, or John discarded the milk.
valid_hypothesis: We doubt that brian is a frog, or John discarded the milk.
invalid_hypothesis: We believe that brian is a frog, or John discarded the milk.
hypothesis_assertion: Brian is a frog, or John discarded the milk.