With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Miss Selfridge is a nationwide Russian high street store.
text_B: The Mitchell Wing B-10 is an American high-wing , open cockpit , single-seat ultralight aircraft and motor glider that was designed by Don Mitchell and produced by a variety of companies in the form of kits and plans for amateur construction .. American. United States. high-wing. high-wing. ultralight aircraft. ultralight aircraft. motor glider. motor glider. Don Mitchell. Don Mitchell ( aircraft designer ). amateur construction. Homebuilt aircraft. In 2012 the aircraft was still available in the form of plans and some materials , offered by US Pacific of Fresno , California .. US Pacific. US Pacific
not_related.