context: We believe that Julius is yellow. It is probably not the case that Bernhard is green. It is highly unlikely that Fred dropped the apple. It is impossible that if Fred dropped the apple, or Bernhard is green, then Greg is gray. It is probable that if Julius is yellow, and Fred dropped the apple, then Mary went to the hallway. We believe that if Bernhard is green, and Fred dropped the apple, then Lily is a frog.
hypothesis: It is likely that greg is gray, or Lily is a frog.
valid_hypothesis: It is impossible that greg is gray, or Lily is a frog.
invalid_hypothesis: It is likely that greg is gray, or Lily is a frog.
hypothesis_assertion: Greg is gray, or Lily is a frog.