sentences:  In the southwest, in riverheads of the White River there lived Upper Tanana.Besides Athabaskan, on the Arctic coast of modern Yukon, including Herschel Island, there lived Inuit (Eskimo).And in the south, down the Teslin River there lived continental Tlingit (Teslin) whose language together with Athabaskan languages is included into Na-Dene language family.