With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Kirk Douglas did not make seven films with Burt Lancaster.
text_B: Sabre Aircraft was an American aircraft manufacturer , specializing in ultralight trikes and their hang glider-style wings .. American. United States. aircraft manufacturer. aircraft manufacturer. hang glider. hang glider. It was located in Buckeye , Arizona .. In circa 2000 the company was noted for producing the least expensive single and two-seat completed , ready-to-fly aircraft available .. By 2000 they had sold more than 200 aircraft .. The company claimed that it was the `` largest and oldest Trike manufacturer in the United States '' .. United States. United States. The company wound up operations in 2008 , stating on their website `` Sabre is no longer in the business of building ultralight trikes .. We felt that it was time to move on . ''
not_related.