context: It is certain that John discarded the milk. There is a very good chance that Lily is a frog. It is probably not the case that Greg is yellow. It is probably the case that if Greg is yellow, or Lily is a frog, then Brian is a rhino. It is improbable that if John discarded the milk, and Lily is a frog, then Julius is a swan. There is little chance that if either John discarded the milk, or Lily is a frog, then Bernhard is a lion.
hypothesis: It is probable that either Lily is a frog, or Julius is a swan.
valid_hypothesis: It is probable that either Lily is a frog, or Julius is a swan.
invalid_hypothesis: There is little chance that either Lily is a frog, or Julius is a swan.
hypothesis_assertion: Either Lily is a frog, or Julius is a swan.