context: It is probably not the case that Bill went to the garden. There is almost no chance that Greg is a frog. It is improbable that Mary picked up the milk. It is improbable that if Greg is a frog, and Bill went to the garden, then Bernhard is a lion. It is probable that if Bill went to the garden, and Mary picked up the milk, then Sandra took the apple. It is probably the case that if either Mary picked up the milk, or Greg is a frog, then Lily is white.
hypothesis: It is certain that either Sandra took the apple, or Bernhard is a lion.
valid_hypothesis: There is almost no chance that either Sandra took the apple, or Bernhard is a lion.
invalid_hypothesis: It is certain that either Sandra took the apple, or Bernhard is a lion.
hypothesis_assertion: Either Sandra took the apple, or Bernhard is a lion.