With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Future's fifth studio album was published in 2012.
text_B: David Anthony Stuart Atkinson -LRB- born David Burke ; October 20 , 1921 -- October 4 , 2012 -RRB- was a Canadian baritone and New York Broadway actor / singer .. baritone. baritone. Most of his career was spent performing in musicals and operettas in New York City from the late 1940s through the early 1970s , although he did appear in some operas and made a few television appearances .. In 1952 he created the role of Sam in the world premiere of Leonard Bernstein 's Trouble in Tahiti .. Leonard Bernstein. Leonard Bernstein. Trouble in Tahiti. Trouble in Tahiti. From 1956-1962 he was a leading performer at the New York City Opera where he starred in several musicals and appeared in the world premieres of several English language operas .. New York City Opera. New York City Opera. His greatest success on the stage came late in his career  : the role of Cervantes in Man of La Mancha which he portrayed in the original Broadway production -LRB- replacing Richard Kiley -RRB- , the 1968 national tour , and in the 1972 Broadway revival .. Man of La Mancha. Man of La Mancha. Richard Kiley. Richard Kiley
not_related.