The following is not from the book. It is worth 10 pts. 16. Recall the island of knights and knaves. Every inhabitant is a knight or a knave. A knight can only tell the truth. A knave can only lie. You meet four inhabitants, Phineas, Ferb, Baljeet, and Isabella. Phineas says, "I and Ferb are both knights or both knaves. Baljeet says, "Phineas is a knave or Isabella is a knave. Isabella says, "Phineas is a knave and Baljeet is a knight. Ferb says that Phineas is a knave. State the type (knight or knave) of each inhabitant if possible. Fully justify your answer.