With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Seiko sells jewelries.
text_B: Colegio Americano de Torreon , A.C. -LRB- CAT -RRB- or the American School of Torreon is an American international school in Los Vinedos , Torreon , Coahuila , Mexico .. Torreon. Torreon. Coahuila. Coahuila. Mexico. Mexico. It serves grade levels early childhood -LRB- from age 3 -RRB- through the 12th grade of senior high school .. it has over 1,300 students .
not_related.