context: It is highly unlikely that Mary got the milk. It is highly likely that Julius is a rhino. It is improbable that Bernhard is a swan. There is a better than even chance that if either Bernhard is a swan, or Mary got the milk, then Brian is a frog. It is probably the case that if either Mary got the milk, or Bernhard is a swan, then Daniel dropped the milk. It is almost certain that if Julius is a rhino, or Mary got the milk, then Greg is green.
hypothesis: It is highly unlikely that either Daniel dropped the milk, or Brian is a frog.
valid_hypothesis: It is highly unlikely that either Daniel dropped the milk, or Brian is a frog.
invalid_hypothesis: It is likely that either Daniel dropped the milk, or Brian is a frog.
hypothesis_assertion: Either Daniel dropped the milk, or Brian is a frog.