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- Different territories are represented by different colours and letters; separated parts of the same territory are represented by the same colour and letter, with a different number added to each smaller part of that territory . * A: ** possesses 5 exclaves : it is impossible to go from the main part of A to any of these parts going only through territory of A; however: *** A1 and A2 are not enclaves: neither of them is surrounded by a single "foreign" territory; *** A1 is a semi-enclave and a semi-exclave: it has an unsurrounded sea border; *** A2 is an exclave of A: it is separated from A; *** A3 is an enclave: it is totally surrounded by B; *** A4 and A5 are counter-enclaves : territories belonging to A that are encroached inside the enclave E; ** contains 1 enclave : "foreign" territory totally surrounded by territory of A; ** contains 1 counter-counter-enclave, or third-order enclave . * B: ** contains 2 enclaves . * C: ** continuous territory, contains no enclave or exclave * D: ** is an enclaved territory: it is territorially continuous, but its territory is totally surrounded by a single "foreign" territory . * E: ** is an enclaved territory: it is inside A; ** contains 2 enclaves , which are counter-enclaves of A; ** possesses 1 counter-enclave , which is a counter-counter-enclave as viewed by A and contained within A5. In topological terms, A and E are each unconnected surfaces, and B, C and D are connected surfaces. However, C and D are also simply connected surfaces, while B is not . (en)