With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Arya Stark wields a sword name elephant.
text_B: The 1958 Sugar Bowl featured the seventh-ranked Ole Miss Rebels and the eleventh-ranked Texas Longhorns .. Ole Miss Rebels. 1957 Ole Miss Rebels football team. Texas Longhorns. 1957 Texas Longhorns football team
not_related.