context: It is highly likely that John left the milk. It is improbable that Mary is in the garden. There is almost no chance that Bernhard is yellow. We doubt that if Bernhard is yellow, or John left the milk, then Julius is green. It is probably the case that if Mary is in the garden, or Bernhard is yellow, then Brian is gray. There is little chance that if either Bernhard is yellow, or Mary is in the garden, then Sandra dropped the apple.
hypothesis: There is a better than even chance that mary is in the garden, and Brian is gray.
valid_hypothesis: It is highly unlikely that mary is in the garden, and Brian is gray.
invalid_hypothesis: There is a better than even chance that mary is in the garden, and Brian is gray.
hypothesis_assertion: Mary is in the garden, and Brian is gray.