148076
In 1978 KDAY radio station selected Leftwich , as the first youth DJ to open the Budweiser Superfest concert at the Los Angeles Coliseum .
 person: DJ
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: DJ 
Answer:
 person: DJ