context: Chances are slight that Greg is a rhino. There is a very good chance that Bernhard is a lion. It is unlikely that Lily is white. It is highly likely that if either Bernhard is a lion, or Lily is white, then Brian is a frog. It is improbable that if either Bernhard is a lion, or Greg is a rhino, then John discarded the apple. There is a better than even chance that if Bernhard is a lion, and Greg is a rhino, then Fred went to the kitchen.
hypothesis: It is almost certain that lily is white, or Fred went to the kitchen.
valid_hypothesis: It is probably not the case that lily is white, or Fred went to the kitchen.
invalid_hypothesis: It is almost certain that lily is white, or Fred went to the kitchen.
hypothesis_assertion: Lily is white, or Fred went to the kitchen.