With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tall Story's director was born in Bolivia.
text_B: `` Stupid Girl '' is a song by the English rock band the Rolling Stones , featured on their 1966 album Aftermath .. Aftermath. Aftermath ( The Rolling Stones album ). rock. Rock ( music ). the Rolling Stones. the Rolling Stones. It was also issued as the B-side of the U.S. `` Paint It , Black '' single .
not_related.