With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tiger Woods has competed in the Arnold Palmer Invitational.
text_B: The Black Hills are a small and low mountain range in the northern Peninsular Ranges System , in Riverside County , southern California .. Peninsular Ranges. Peninsular Ranges. Riverside County. Riverside County, California. California. California. mountain range. mountain range. Its summit is 2739 feet .. They are located east of the city of Temecula .. city of Temecula. Temecula, California. Oak Mountain is to the south of the hills .. Oak Mountain. Oak Mountain ( Riverside County )
not_related.