With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Billy Clanton's father was Newman Clanton.
text_B: The 1977 African Youth Qualifying for World Cup was the first qualifying tournament into the FIFA World Youth Championship .. FIFA World Youth Championship. FIFA World Youth Championship. Cote d'Ivoire and Morocco qualified to the 1977 FIFA World Youth Championship in Tunisia .. FIFA World Youth Championship. FIFA World Youth Championship. Cote d'Ivoire. Cote d'Ivoire national under-20 football team. Morocco. Morocco national under-20 football team. 1977 FIFA World Youth Championship. 1977 FIFA World Youth Championship. Tunisia. Tunisia
not_related.