Take the following as truth: Just 17 miles (27 km) from Kauai, the 73-sq mile (189-sq km) island of Niihau (nee-ee-how) is called  The Forbidden Island  because it is privately owned and cannot be visited without an invitation from one of the 225 inhabitants.
Then the following statement: "You must take a boat between Niihau and Kauai." is true, false, or inconclusive?
Answer: Inconclusive