context: It is impossible that Julius is green. It is probable that Lily is a frog. It is impossible that Bernhard is yellow. It is probably the case that if either Bernhard is yellow, or Julius is green, then Mary dropped the milk. Chances are slight that if Lily is a frog, or Julius is green, then Fred went to the cinema. It is probably not the case that if either Lily is a frog, or Bernhard is yellow, then Greg is green.
hypothesis: We doubt that greg is green, or Julius is green.
valid_hypothesis: We doubt that greg is green, or Julius is green.
invalid_hypothesis: It is almost certain that greg is green, or Julius is green.
hypothesis_assertion: Greg is green, or Julius is green.