context: Chances are slight that Greg is green. It is almost certain that Lily is a frog. There is little chance that John went to the hallway. It is highly unlikely that if Lily is a frog, or John went to the hallway, then Mary put down the apple. It is impossible that if John went to the hallway, or Lily is a frog, then Julius is a lion. It is certain that if John went to the hallway, and Lily is a frog, then Sandra got the milk.
hypothesis: It is improbable that either Mary put down the apple, or Sandra got the milk.
valid_hypothesis: It is improbable that either Mary put down the apple, or Sandra got the milk.
invalid_hypothesis: It is probable that either Mary put down the apple, or Sandra got the milk.
hypothesis_assertion: Either Mary put down the apple, or Sandra got the milk.