context: Chances are about even that Bernhard is a frog. It is highly unlikely that Mary went to the garden. It is almost certain that Daniel dropped the milk. Chances are slight that if Mary went to the garden, and Daniel dropped the milk, then Brian is yellow. It is almost certain that if Mary went to the garden, and Bernhard is a frog, then Lily is gray. It is improbable that if Daniel dropped the milk, and Mary went to the garden, then Julius is a frog.
hypothesis: Chances are about even that either Julius is a frog, or Bernhard is a frog.
valid_hypothesis: Chances are about even that either Julius is a frog, or Bernhard is a frog.
invalid_hypothesis: It is almost certain that either Julius is a frog, or Bernhard is a frog.
hypothesis_assertion: Either Julius is a frog, or Bernhard is a frog.