context: It is probably not the case that Lily is a lion. It is almost certain that John left the apple. It is highly unlikely that Greg is a swan. There is almost no chance that if either John left the apple, or Lily is a lion, then Mary dropped the milk. It is unlikely that if John left the apple, or Greg is a swan, then Emily is a cat. There is a very good chance that if either John left the apple, or Lily is a lion, then Daniel is in the garden.
hypothesis: Chances are about even that either Emily is a cat, or Daniel is in the garden.
valid_hypothesis: Chances are about even that either Emily is a cat, or Daniel is in the garden.
invalid_hypothesis: It is almost certain that either Emily is a cat, or Daniel is in the garden.
hypothesis_assertion: Either Emily is a cat, or Daniel is in the garden.