context: It is highly likely that Greg is a frog. We believe that Mary left the apple. It is improbable that Lily is a rhino. We believe that if either Mary left the apple, or Lily is a rhino, then John went to the office. Chances are about even that if Mary left the apple, and Greg is a frog, then Julius is gray. It is likely that if Mary left the apple, or Greg is a frog, then Bernhard is a lion.
hypothesis: There is a better than even chance that either Lily is a rhino, or Bernhard is a lion.
valid_hypothesis: There is a better than even chance that either Lily is a rhino, or Bernhard is a lion.
invalid_hypothesis: Chances are slight that either Lily is a rhino, or Bernhard is a lion.
hypothesis_assertion: Either Lily is a rhino, or Bernhard is a lion.