80058
Former COO Scott Arnold took the title of interim president and chief executive officer until November 8 , 2005 , when it was announced that Tod Nielsen would take over as CEO effective November 9 , 2005 .
 person: Scott Arnold; person: Tod Nielsen
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: Scott Arnold, Tod Nielsen 
Answer:
 person: Scott Arnold; person: Tod Nielsen