With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tesla, Inc. has a subordinate company that has headquarters in California.
text_B: Grace Jackson -LRB- born 14 June 1961 in St. Ann , Jamaica , West Indies Federation -RRB- is a retired Jamaican athlete , who competed mainly in the 100 and 200 metres .. 200 metres. 200 metres. St. Ann. St. Ann. Jamaica. Jamaica. West Indies Federation. West Indies Federation. athlete. Track and field athletics. 100 metres. Jackson reached the 100 and 200 m finals in the 1984 and 1988 Summer Olympic Games and the 200 m final in Barcelona in 1992 .. Olympic Games. Olympic Games. 100 metres. 1984 Summer Olympics. 1988 Summer Olympic Games. 1988 Summer Olympics. Barcelona in 1992. 1992 Summer Olympics. Her breakthrough performance was at the 1988 Summer Olympics , held in Seoul , South Korea .. Seoul. Seoul. South Korea. South Korea. She won a silver medal over 200 m behind Florence Griffith-Joyner , defeating then 200 m World Champion Silke Moller , Heike Drechsler and team mate Merlene Ottey .. silver medal. silver medal. Florence Griffith-Joyner. Florence Griffith-Joyner. Silke Moller. Silke Moller. Heike Drechsler. Heike Drechsler. Merlene Ottey. Merlene Ottey. She also won a bronze medal at the 1987 IAAF World Indoor Championships and a silver medal at the 1989 IAAF World Indoor Championships .. World Indoor Championships. IAAF World Indoor Championships in Athletics. silver medal. silver medal. bronze medal. bronze medal. 1987 IAAF World Indoor Championships. 1987 IAAF World Indoor Championships. 1989 IAAF World Indoor Championships. 1989 IAAF World Indoor Championships. A detailed biography was published .
not_related.