With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: North Vancouver is served by McDonald's restaurants.
text_B: Hector Mayagoitia Dominguez -LRB- January 7 , 1923 in Victoria de Durango , Durango -RRB- is a chemical bacteriologist and Mexican politician , and also a member of the Institutional Revolutionary Party , Governor of Durango between 1974 and 1979 , and Director of the National Polytechnic Institute .. Victoria de Durango. Durango, Durango. Durango. Durango. Institutional Revolutionary Party. Institutional Revolutionary Party. Governor of Durango. Governor of Durango. National Polytechnic Institute. National Polytechnic Institute. In 1974 , he was nominated by PRI as a candidate for Governor of Durango .. Durango. Durango. Governor of Durango. Governor of Durango. Hector was elected and held the position until 1979 when , less than a year before finishing his term , he was appointed as Director of the National Polytechnic Institute .. National Polytechnic Institute. National Polytechnic Institute. In 1983 he was also named Chief of a main directorate of the National Council of Science and Technology -LRB- CONACYT -RRB- and in 1988 , he was elected as a Senator representing Durango .. Durango. Durango. National Council of Science and Technology. National Council of Science and Technology. Senator. Mexican Senate. He has received numerous awards including Commission for Protected areas of Mexico -LRB- CONANP -RRB- Award for Nature Conservation for his pioneering efforts in the establishment of the first biosphere reserves in Mexico www.conanp.gob.mx .. Protected areas of Mexico. Protected areas of Mexico. biosphere reserves. biosphere reserves
not_related.