With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Allen Iverson was a prolific scorer.
text_B: The 32nd annual 1997 European Karate Championships was held in Santa Cruz de Tenerife , Spain from 2-4 May 1997 .. Santa Cruz de Tenerife. Santa Cruz de Tenerife. Spain. Spain. European Karate Championships. European Karate Championships
not_related.