context: We doubt that Lily is a rhino. It is probably not the case that Bernhard is a swan. Chances are slight that Gertrude is a mouse. It is highly likely that if either Lily is a rhino, or Bernhard is a swan, then John dropped the apple. We believe that if either Lily is a rhino, or Gertrude is a mouse, then Julius is a frog. It is certain that if either Lily is a rhino, or Bernhard is a swan, then Jessica is a cat.
hypothesis: It is almost certain that julius is a frog, or Bernhard is a swan.
valid_hypothesis: Chances are about even that julius is a frog, or Bernhard is a swan.
invalid_hypothesis: It is almost certain that julius is a frog, or Bernhard is a swan.
hypothesis_assertion: Julius is a frog, or Bernhard is a swan.