context: There is almost no chance that Bernhard is a rhino. It is probably not the case that Greg is gray. It is probable that Lily is white. It is probably not the case that if either Lily is white, or Greg is gray, then Jeff went to the kitchen. It is likely that if either Lily is white, or Bernhard is a rhino, then Mary is in the park. It is probably the case that if Bernhard is a rhino, and Lily is white, then John left the apple.
hypothesis: It is improbable that either Greg is gray, or Lily is white.
valid_hypothesis: There is a better than even chance that either Greg is gray, or Lily is white.
invalid_hypothesis: It is improbable that either Greg is gray, or Lily is white.
hypothesis_assertion: Either Greg is gray, or Lily is white.