context: Chances are about even that Brian is green. It is highly unlikely that Mary went to the hallway. There is a very good chance that Bernhard is a lion. Chances are slight that if Bernhard is a lion, or Mary went to the hallway, then John discarded the apple. It is improbable that if either Mary went to the hallway, or Bernhard is a lion, then Greg is yellow. It is likely that if Mary went to the hallway, or Bernhard is a lion, then Jessica is a wolf.
hypothesis: It is likely that greg is yellow, or John discarded the apple.
valid_hypothesis: It is unlikely that greg is yellow, or John discarded the apple.
invalid_hypothesis: It is likely that greg is yellow, or John discarded the apple.
hypothesis_assertion: Greg is yellow, or John discarded the apple.