With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Doug Ducey vended his business in 2007.
text_B: Mariane Theresia Sophie Stebnowska -LRB- or Maria Sofia Stempkosta ; 1753 -- 16 February 1848 -RRB- , was a Polish opera singer , actor and harpist .. Polish. Poland. opera singer. opera singer. harpist. harpist. She was among the great talents of the Royal Swedish Opera in Stockholm during the reign of King Gustav III of Sweden .. Royal Swedish Opera. Royal Swedish Opera. Stockholm. Stockholm. Gustav III of Sweden. Gustav III of Sweden. She was married to the opera singer Christoffer Christian Karsten and was also the maternal grandmother of the world-famous ballet dancer Marie Taglioni .. opera singer. opera singer. Christoffer Christian Karsten. Christoffer Christian Karsten. ballet dancer. ballet dancer. Marie Taglioni. Marie Taglioni
not_related.