164896
The following year , he became Chief of Police of the North Eastern Railway , where he brought in many improvements for the officers and modernisation including the introduction of new uniform such as the modern police helmet , sports clubs and libraries so that the officers might study for promotion .
 organization: Police; organization: North Eastern Railway
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: Police, North Eastern Railway 
Answer:
 organization: Police; organization: North Eastern Railway