With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Oh Yeon-seo worked with someone.
text_B: Oh Yeon-seo -LRB- born Oh Haet-nim , on June 22 , 1987 -RRB- , is a South Korean actress and former member of South Korean girl group , LUV .. LUV. LUV ( South Korean band ). She is best known for her roles in television dramas My Husband Got a Family -LRB- 2012 -RRB- , Jang Bo-ri is Here !. My Husband Got a Family. My Husband Got a Family. -LRB- 2014 -RRB- , Shine or Go Crazy -LRB- 2015 -RRB- and Please Come Back , Mister -LRB- 2016 -RRB- .. Shine or Go Crazy. Shine or Go Crazy
related.