context: Chances are about even that John moved to the office. It is unlikely that Lily is a lion. There is little chance that Daniel dropped the apple. It is highly likely that if John moved to the office, and Lily is a lion, then Sandra took the football. Chances are slight that if either Lily is a lion, or Daniel dropped the apple, then Julius is gray. There is little chance that if either Daniel dropped the apple, or Lily is a lion, then Mary went to the garden.
hypothesis: It is certain that lily is a lion, and John moved to the office.
valid_hypothesis: It is improbable that lily is a lion, and John moved to the office.
invalid_hypothesis: It is certain that lily is a lion, and John moved to the office.
hypothesis_assertion: Lily is a lion, and John moved to the office.