With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Borrelia afzelii is an organism.
text_B: Melissa Independent School District is a public school district based in Melissa , Texas -LRB- USA -RRB- .. Melissa. Melissa, Texas. USA. United States. school district. school district. Texas. Texas. In addition to Melissa , the district serves a small portion of Weston and McKinney .. Melissa. Melissa, Texas. Weston. Weston, Texas. McKinney. McKinney, Texas. In 2009 , the school district was rated `` recognized '' by the Texas Education Agency .. school district. school district. Texas. Texas. recognized. Texas Education Agency accountability ratings system. Texas Education Agency. Texas Education Agency
not_related.