context: There is little chance that Bernhard is green. It is certain that Lily is a rhino. It is likely that Gertrude is a mouse. It is highly unlikely that if Lily is a rhino, and Bernhard is green, then John discarded the milk. It is probably the case that if Bernhard is green, or Lily is a rhino, then Greg is a swan. It is highly unlikely that if Lily is a rhino, or Bernhard is green, then Mary dropped the milk.
hypothesis: We believe that greg is a swan, or Bernhard is green.
valid_hypothesis: We believe that greg is a swan, or Bernhard is green.
invalid_hypothesis: It is unlikely that greg is a swan, or Bernhard is green.
hypothesis_assertion: Greg is a swan, or Bernhard is green.