With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: An area of Slovenia has an Alpine climate.
text_B: Ballet as a music form progressed from simply a complement to dance , to a concrete compositional form that often had as much value as the dance that went along with it .. The dance form , originating in France during the 17th century , began as a theatrical dance .. It was not until the 19th century that ballet gained status as a `` classical '' form .. In ballet , the terms ` classical ' and ` romantic ' are chronologically reversed from musical usage .. Thus , the 19th century classical period in ballet coincided with the 19th century Romantic era in Music .. Ballet music composers from the 17th -- 19th centuries , including the likes of Jean-Baptiste Lully and Pyotr Ilyich Tchaikovsky , were predominantly in France and Russia .. Jean-Baptiste Lully. Jean-Baptiste Lully. Pyotr Ilyich Tchaikovsky. Pyotr Ilyich Tchaikovsky. Yet with the increased international notoriety seen in Tchaikovsky 's lifetime , ballet music composition and ballet in general spread across the western world .
not_related.