With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Boston has undergone deindustrialization.
text_B: A digital newsstand is a digital distribution platform for downloadable newspapers , magazines and journals .. digital distribution platform. digital distribution platform. Examples include Apple 's Newsstand , Google Play Newsstand and Zinio .. Newsstand. Newsstand ( application ). Google Play Newsstand. Google Play Newsstand. Zinio. Zinio
not_related.