Complex sentence: From 1967 to 1990 the orchestra was known as the "Symphonisches Orchester Berlin" (SOB) and originated with the merger of two independent orchestras, the "Berliner Symphonisches Orchester" (founded in 1949) and the "Deutsches Symphonieorchester".
Split into simpler sentences: From 1967 to 1990 the orchestra was named "Symphonisches Orchester Berlin" (SOB). The orchestra originates from the merger of two independent orchestras, the "Berliner Symphonisches Orchester" (founded in 1949) and the "Deutsches Symphonieorchester".