91505
The role of TNF as a key player in the development of rheumatoid arthritis was originally demonstrated by George Kollias and colleagues in proof of principle studies in transgenic animal models .
 disease: rheumatoid arthritis; person: George Kollias
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: rheumatoid arthritis, George Kollias 
Answer:
 disease: rheumatoid arthritis; person: George Kollias