With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Bohemian Rhapsody was released as a single.
text_B: Carlo Varetto -LRB- 26 May 1905 -- 1966 -RRB- was an Italian shooter who competed at the 1936 and 1956 Olympics in 50 m rifle events .. His son Sergio became an Olympic pistol shooter .. Sergio. Sergio Varetto. Carlo Varetto was born to Aldo Varetto -LRB- 1879 -- 1959 -RRB- , a keen pistol and rifle shooter who often competed alongside his son and then grandson .. Carlo had an early and unsuccessful marriage , after which he remarried Annita Romagnoli a few years before the outbreak of World War II ; their son Sergio was born in 1937 .. Sergio. Sergio Varetto. From the 1920s Carlo became one of the best Italian rifle shooters , which he demonstrated at an international competition in Turin in 1927 .. Between 1935 and 1958 he won at least 10 Italian Championships of the Armed Forces , and was included into the national team for the 1936 and 1956 Olympics .. He died in 1966 in Vergato .. Vergato. Vergato
not_related.