With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Mr. Nobody had a soundtrack.
text_B: Sergei Ryabov -LRB- Сергеи Рябов born November 17 , 1977 -RRB- is a Russian film director , artist , and animator .. director. film director. artist. artist. animator. animator. Russian. Russian people
not_related.