With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Andy Roddick was ranked in the top ten for women's volleyball.
text_B: The 1988 McDonald 's Championship took place at Palacio de los Deportes in Madrid , Spain .. Palacio de los Deportes. Palacio de Deportes de la Comunidad de Madrid. Madrid. Madrid. Spain. Spain
not_related.