context: There is a better than even chance that Gertrude is a sheep. There is a better than even chance that Mary went to the garden. It is highly likely that Julius is a swan. There is little chance that if either Mary went to the garden, or Gertrude is a sheep, then Sandra got the football. There is little chance that if either Gertrude is a sheep, or Mary went to the garden, then Bernhard is white. It is probably not the case that if Gertrude is a sheep, or Mary went to the garden, then Brian is a lion.
hypothesis: It is improbable that either Bernhard is white, or Julius is a swan.
valid_hypothesis: It is highly likely that either Bernhard is white, or Julius is a swan.
invalid_hypothesis: It is improbable that either Bernhard is white, or Julius is a swan.
hypothesis_assertion: Either Bernhard is white, or Julius is a swan.