Take the following as truth: The island's most popular excursion prettiest by boat from Marina Grande, but also possible by road northwest of Anacapri is to the celebrated marine cave, the Blue Grotto (Grotta Azzurra), most effective (and crowded) at noon.
Then the following statement: "The island's most popular excursion is prettiest by boat but is also more expensive by boat." is true, false, or inconclusive?
Answer: Inconclusive