25994
His music from around 1985 is associated with that of composers such as Konrad Boehmer , Walter Hekster , , and Jan Vriend , who are described as " post-serial " in style .
 person: Konrad Boehmer; person: Walter Hekster; person: Jan Vriend
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: Konrad Boehmer, Walter Hekster, Jan Vriend 
Answer:
 person: Konrad Boehmer; person: Walter Hekster; person: Jan Vriend