With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tesla, Inc. specializes in parties.
text_B: The Union of Cities -LRB- Vserossiiskii soiuz gorodov -RRB- was a political organisation set up in Imperial Russia in August 1914 to help achieve Russian war aims .. Imperial Russia. Imperial Russia. It was a liberal organisation which after 1915 operated in conjunction with the All-Russian Zemstvo Union .. liberal. liberalism. All-Russian Zemstvo Union. Zemstvo#All-Russian Zemstvo Union
not_related.