323037
More riders joined Agostini 's boycott and by the 1976 season , only a handful of serious Grand Prix riders were among the entrants .
 person: Agostini
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Agostini 
Answer:
 person: Agostini