121491
The council comprises the mayor , Roy D. Buol , who serves as its chairman , 4 ward-elected members , and 2 at-large members .
 person: Roy D. Buol
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: Roy D. Buol 
Answer:
 person: Roy D. Buol