context: Chances are about even that Emily is a wolf. There is little chance that Mary put down the milk. It is almost certain that Julius is a frog. It is probably the case that if Julius is a frog, and Mary put down the milk, then Sandra got the football. It is probably the case that if either Julius is a frog, or Mary put down the milk, then Lily is a lion. We doubt that if either Julius is a frog, or Emily is a wolf, then Greg is green.
hypothesis: It is highly unlikely that either Sandra got the football, or Lily is a lion.
valid_hypothesis: It is probably the case that either Sandra got the football, or Lily is a lion.
invalid_hypothesis: It is highly unlikely that either Sandra got the football, or Lily is a lion.
hypothesis_assertion: Either Sandra got the football, or Lily is a lion.