With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Rowan Atkinson stars in a British television series.
text_B: Wiesław Ochman -LRB- born 6 February 1937 -RRB- is a Polish tenor .. Polish. Poland. tenor. tenor. Ochman began learning voice under the direction of Gustaw Serafin in Krakow -LRB- 1955 -- 1959 -RRB- and Maria Szłapak in Bytom -LRB- 1960 -- 1963 -RRB- .. Krakow. Krakow. Bytom. Bytom. In 1960 , he joined the Silesian Opera in Bytom , where he sang for three seasons , in 1963 and 1964 ; and then , at the Opera Krakowska .. Bytom. Bytom. Silesian Opera. Silesian Opera. Opera Krakowska. Opera Krakowska. He performed at the Teatr Wielki in Warsaw from 1964 till 1970 .. In 1965 he sang the tenor lead Jontek in the `` national Polish opera '' Halka by Stanisław Moniuszko in the opening performance in the reconstructed Teatr Wielki .. Polish. Poland. tenor. tenor. Halka. Halka. Stanisław Moniuszko. Stanisław Moniuszko. He recorded that role and it is now available on compact disc .. Wiesław Ochman began his international career in 1967 with the Opera in Berlin .. He sang in Munich and Hamburg .. He achieved his first successes in competition at festivals in Glyndebourne and Salzburg .. Glyndebourne. Glyndebourne. Salzburg. Salzburg. In 1972 , he was engaged by the Paris Opera , and consecutively by operas in Chicago and San Francisco .. In 1975 with the role of Arrigo in the opera The Sicilian Vespers by Giuseppe Verdi , Ochman made his debut at New York 's Metropolitan Opera .. The Sicilian Vespers. Les vepres siciliennes. Giuseppe Verdi. Giuseppe Verdi. New York. New York City. Metropolitan Opera. Metropolitan Opera
not_related.