context: It is impossible that Jessica is a mouse. Chances are slight that Yann is thirsty. We believe that Greg is green. There is little chance that if Greg is green, or Yann is thirsty, then Julius is a swan. We doubt that if Yann is thirsty, or Jessica is a mouse, then John left the apple. We believe that if either Jessica is a mouse, or Yann is thirsty, then Fred went to the kitchen.
hypothesis: There is a better than even chance that jessica is a mouse, or Julius is a swan.
valid_hypothesis: It is improbable that jessica is a mouse, or Julius is a swan.
invalid_hypothesis: There is a better than even chance that jessica is a mouse, or Julius is a swan.
hypothesis_assertion: Jessica is a mouse, or Julius is a swan.