With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: U2 is a musical group from Ireland.
text_B: Alvin Jeschke is a retired Czechoslovak slalom canoeist who competed from the late 1940s to the mid-1950s .. Czechoslovak. Czechoslovakia. slalom canoeist. slalom canoeing. He won a bronze medal in the folding K-1 team event at the 1949 ICF Canoe Slalom World Championships in Geneva .. 1949 ICF Canoe Slalom World Championships. 1949 ICF Canoe Slalom World Championships. Geneva. Geneva
not_related.