context: It is certain that Mary moved to the garden. There is a very good chance that Sandra took the milk. There is a better than even chance that Yann is tired. Chances are slight that if Mary moved to the garden, and Sandra took the milk, then John discarded the apple. It is probably the case that if Sandra took the milk, or Mary moved to the garden, then Brian is a rhino. It is probably the case that if either Sandra took the milk, or Yann is tired, then Julius is yellow.
hypothesis: It is highly unlikely that brian is a rhino, or John discarded the apple.
valid_hypothesis: It is probable that brian is a rhino, or John discarded the apple.
invalid_hypothesis: It is highly unlikely that brian is a rhino, or John discarded the apple.
hypothesis_assertion: Brian is a rhino, or John discarded the apple.