context: There is a very good chance that Bernhard is gray. Chances are slight that Lily is a frog. There is a better than even chance that Greg is a lion. Chances are slight that if either Greg is a lion, or Lily is a frog, then Gertrude is a mouse. Chances are about even that if Greg is a lion, or Lily is a frog, then Julius is yellow. It is unlikely that if Bernhard is gray, and Greg is a lion, then Mary took the apple.
hypothesis: Chances are about even that either Greg is a lion, or Gertrude is a mouse.
valid_hypothesis: Chances are about even that either Greg is a lion, or Gertrude is a mouse.
invalid_hypothesis: It is highly unlikely that either Greg is a lion, or Gertrude is a mouse.
hypothesis_assertion: Either Greg is a lion, or Gertrude is a mouse.