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In 1911 , he helped bring a moribund Dallas Symphony Orchestra back into existence and assumed the post of music director , a position he would hold until 1914 ; in 1913 he took a concurrent similar position with the Fort Worth Symphony Orchestra .
 organization: Dallas Symphony Orchestra; organization: Fort Worth Symphony Orchestra
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: Dallas Symphony Orchestra, Fort Worth Symphony Orchestra 
Answer:
 organization: Dallas Symphony Orchestra; organization: Fort Worth Symphony Orchestra