context: Chances are slight that Bernhard is a swan. There is a very good chance that Lily is a rhino. It is probable that Julie is in the office. It is probable that if Lily is a rhino, or Julie is in the office, then Emily is a wolf. There is a better than even chance that if Lily is a rhino, or Julie is in the office, then Sandra left the milk. There is almost no chance that if Lily is a rhino, and Bernhard is a swan, then Greg is green.
hypothesis: We believe that julie is in the office, or Bernhard is a swan.
valid_hypothesis: We believe that julie is in the office, or Bernhard is a swan.
invalid_hypothesis: There is little chance that julie is in the office, or Bernhard is a swan.
hypothesis_assertion: Julie is in the office, or Bernhard is a swan.