121246
In 2010 he has become party leader as well as Parliamentary leader in both cases succeeding Bas van der Vlies .
 person: Bas van der Vlies
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: Bas van der Vlies 
Answer:
 person: Bas van der Vlies