context: It is probably not the case that John went to the hallway. There is little chance that Fred dropped the apple. It is highly unlikely that Bernhard is green. It is probable that if Bernhard is green, or John went to the hallway, then Julius is a frog. It is improbable that if Bernhard is green, and Fred dropped the apple, then Brian is a rhino. It is impossible that if either John went to the hallway, or Fred dropped the apple, then Sandra left the apple.
hypothesis: It is certain that julius is a frog, and John went to the hallway.
valid_hypothesis: It is unlikely that julius is a frog, and John went to the hallway.
invalid_hypothesis: It is certain that julius is a frog, and John went to the hallway.
hypothesis_assertion: Julius is a frog, and John went to the hallway.