16961
As four-part music became more established by the time of Johannes Ockeghem , the top and bottom parts were less likely to cross , but the inner voices continued to cross frequently .
 person: Johannes Ockeghem
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: Johannes Ockeghem 
Answer:
 person: Johannes Ockeghem