With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Canada is not in North America.
text_B: is a Japanese retail book store chain founded in 1891 as Tokyodo , a book publishing company .. retail. Retailing. book store. book store. chain. Chain store. After World War II , the company branched out into retail book sales and Tokyodo split into two companies  : Tokyodo Shoten , which continued with the retail book sales part of the business , and Tokyodo Publishing , which continued the publishing side of the business .. retail. Retailing. World War II. World War II. Tokyodo Publishing. Tokyodo Publishing. The main office of Tokyodo Shoten is located in the Kanda-Jinbocho area of Tokyo , sharing a building with one of its retail stores and an office of Tokyodo Publishing .. Kanda-Jinbocho. Jinbocho, Tokyo. retail. Retailing. Tokyodo Publishing. Tokyodo Publishing. Tokyo. Tokyo. Its main competitors are the Sanseido Shoten and Shosen Grande stores .. Sanseido Shoten. Sanseido Shoten. Shosen Grande. Shosen
not_related.