context: It is unlikely that Brian is a lion. It is highly unlikely that Jeff dropped the apple. It is highly likely that Jessica is a mouse. It is highly unlikely that if either Brian is a lion, or Jeff dropped the apple, then Greg is green. It is probably the case that if Jeff dropped the apple, or Brian is a lion, then Lily is gray. Chances are slight that if either Brian is a lion, or Jessica is a mouse, then Bernhard is a frog.
hypothesis: It is almost certain that greg is green, or Brian is a lion.
valid_hypothesis: We doubt that greg is green, or Brian is a lion.
invalid_hypothesis: It is almost certain that greg is green, or Brian is a lion.
hypothesis_assertion: Greg is green, or Brian is a lion.