51415
The terms the holonomic and nonholonomic systems were introduced by Heinrich Hertz in 1894 .
 person: Heinrich Hertz
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: Heinrich Hertz 
Answer:
 person: Heinrich Hertz