context: It is probably the case that Mary moved to the garden. It is impossible that Bernhard is a frog. It is improbable that John picked up the milk. Chances are about even that if Mary moved to the garden, and Bernhard is a frog, then Julius is a swan. It is almost certain that if either Mary moved to the garden, or John picked up the milk, then Greg is a rhino. There is almost no chance that if either Mary moved to the garden, or Bernhard is a frog, then Brian is a lion.
hypothesis: It is probable that julius is a swan, and Bernhard is a frog.
valid_hypothesis: It is impossible that julius is a swan, and Bernhard is a frog.
invalid_hypothesis: It is probable that julius is a swan, and Bernhard is a frog.
hypothesis_assertion: Julius is a swan, and Bernhard is a frog.