With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Gendry appeared in the novel A Feast for Crows.
text_B: Shadow Ridge High School is a public high school in North Las Vegas , Nevada .. It was established in 2002 and opened in August 2003 .. The first graduating class in the high school graduated in June 2005 .. The school is a part of Clark County School District .. Clark County School District. Clark County School District
not_related.