8642
During the playoffs , head coach Roger Neilson employed a rotation system between the two goaltenders .
 person: Roger Neilson
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: Roger Neilson 
Answer:
 person: Roger Neilson