The Island of Knights and KnavesThere is an island in which certain inhabitants called "knights" always tell the truth and others called "knaves" always lie. It is assumed that every inhabitant of the island is either a knight or a knave.In the problem there are 3 inhabitants, who are denoted by A, B, C, …. Each of them makes a statement about the number of knights in a set. Natives denote sets as {PQR…} (without commas). They also know the empty set {}. Their vocabulary is rather limited. Generally they talk about even {0, 2, 4, …} and odd {1, 3, 5, …} numbers. Who are the knights and who are the knaves?