context: There is almost no chance that Brian is a lion. It is likely that Greg is gray. We doubt that Bernhard is yellow. It is almost certain that if either Greg is gray, or Bernhard is yellow, then Mary picked up the apple. Chances are about even that if Greg is gray, and Bernhard is yellow, then John dropped the apple. It is highly likely that if Bernhard is yellow, or Brian is a lion, then Jeff went to the kitchen.
hypothesis: Chances are slight that greg is gray, or Jeff went to the kitchen.
valid_hypothesis: We believe that greg is gray, or Jeff went to the kitchen.
invalid_hypothesis: Chances are slight that greg is gray, or Jeff went to the kitchen.
hypothesis_assertion: Greg is gray, or Jeff went to the kitchen.