context: There is a better than even chance that Emily is a mouse. It is certain that Bernhard is a rhino. It is likely that Bill put down the milk. It is certain that if Bill put down the milk, or Bernhard is a rhino, then John picked up the apple. Chances are slight that if Emily is a mouse, and Bernhard is a rhino, then Mary went to the kitchen. It is unlikely that if Emily is a mouse, or Bill put down the milk, then Julius is yellow.
hypothesis: It is certain that emily is a mouse, or John picked up the apple.
valid_hypothesis: It is certain that emily is a mouse, or John picked up the apple.
invalid_hypothesis: There is little chance that emily is a mouse, or John picked up the apple.
hypothesis_assertion: Emily is a mouse, or John picked up the apple.