context: We doubt that Bernhard is green. It is probably the case that Mary went to the kitchen. It is improbable that Greg is a lion. It is likely that if Bernhard is green, or Greg is a lion, then Lily is white. It is certain that if either Greg is a lion, or Mary went to the kitchen, then Julius is a frog. It is highly unlikely that if either Greg is a lion, or Bernhard is green, then Brian is a rhino.
hypothesis: It is unlikely that either Lily is white, or Greg is a lion.
valid_hypothesis: It is unlikely that either Lily is white, or Greg is a lion.
invalid_hypothesis: It is certain that either Lily is white, or Greg is a lion.
hypothesis_assertion: Either Lily is white, or Greg is a lion.