With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Lana Del Rey released Thriller.
text_B: Ringling Bros. .. World 's Greatest Shows was a circus founded in Baraboo , Wisconsin , United States in 1884 by five of the seven Ringling brothers  : Albert , August , Otto , Alfred T. , Charles , John , and Henry .. circus. circus. United States. United States. Ringling brothers. Ringling brothers. Otto. Otto Ringling. Charles. Charles Ringling. John. John Ringling. The Ringling brothers were sons of a German immigrant , August Frederick Rungeling , who simplified his name to Ringling once in America .. Ringling brothers. Ringling brothers. Four brothers were born in McGregor , Iowa  : Alf T. , Charles , John and Henry .. Charles. Charles Ringling. John. John Ringling. The Ringling family lived in McGregor , Iowa for twelve years , from 1860 until 1872 .. The family then lived in Prairie du Chien , Wisconsin , and moved to Baraboo , Wisconsin in 1875 .. In 1907 Ringling Bros. acquired the Barnum & Bailey Circus , merging them in 1919 to become Ringling Bros. and Barnum & Bailey Circus , promoted as The Greatest Show on Earth .. Ringling Bros. and Barnum & Bailey Circus. Ringling Bros. and Barnum & Bailey Circus
not_related.