76969
In 1969 he began experimenting with free improvisational music , working in a duo with saxophonist Evan Parker .
 person: Evan Parker
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: Evan Parker 
Answer:
 person: Evan Parker