Take the following as truth: Roughly bounded by four rivers ' the Seine, Oise, Aisne, and Marne ' the Ile-de-France was the birthplace of the first great Gothic cathedrals, including Saint-Denis, Senlis, Chartres, and Beauvais.
Then the following statement: "The four rivers completed surround Paris." is true, false, or inconclusive?
Answer: Inconclusive