4686
South African scientists were the first to question the President ' s meddling in a scientific debate , which they contended , was already over .
 geographical social political: South African; person: South African scientists; person: the President; person: they
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
 Entities: South African, South African scientists, the President, they 
Answer:
 geographical social political: South African; person: South African scientists; person: the President; person: they