context: It is highly likely that Jessica is a sheep. It is improbable that Fred went to the kitchen. We believe that Lily is green. We believe that if either Jessica is a sheep, or Fred went to the kitchen, then Bernhard is a swan. There is a better than even chance that if Jessica is a sheep, and Fred went to the kitchen, then Brian is a rhino. It is highly likely that if Jessica is a sheep, or Lily is green, then Greg is a lion.
hypothesis: It is likely that either Bernhard is a swan, or Fred went to the kitchen.
valid_hypothesis: It is likely that either Bernhard is a swan, or Fred went to the kitchen.
invalid_hypothesis: Chances are slight that either Bernhard is a swan, or Fred went to the kitchen.
hypothesis_assertion: Either Bernhard is a swan, or Fred went to the kitchen.