context: Chances are slight that Julius is a swan. It is certain that Lily is a lion. Chances are about even that Mary moved to the garden. It is highly unlikely that if either Mary moved to the garden, or Lily is a lion, then Brian is green. It is certain that if either Julius is a swan, or Mary moved to the garden, then Daniel dropped the apple. Chances are about even that if Lily is a lion, or Julius is a swan, then Sandra took the milk.
hypothesis: Chances are about even that mary moved to the garden, and Lily is a lion.
valid_hypothesis: Chances are about even that mary moved to the garden, and Lily is a lion.
invalid_hypothesis: It is impossible that mary moved to the garden, and Lily is a lion.
hypothesis_assertion: Mary moved to the garden, and Lily is a lion.