context: There is little chance that Bernhard is green. There is almost no chance that Emily is a sheep. There is a very good chance that Julius is gray. It is certain that if Julius is gray, or Emily is a sheep, then Greg is a frog. It is likely that if either Emily is a sheep, or Bernhard is green, then Brian is white. There is almost no chance that if Bernhard is green, and Emily is a sheep, then Sandra dropped the milk.
hypothesis: We believe that brian is white, or Emily is a sheep.
valid_hypothesis: It is improbable that brian is white, or Emily is a sheep.
invalid_hypothesis: We believe that brian is white, or Emily is a sheep.
hypothesis_assertion: Brian is white, or Emily is a sheep.