74587
He briefly held a position with British Rail before securing an apprenticeship as a machinist at a Liverpool equipment manufacturer .
 organization: British Rail; location: Liverpool
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: British Rail, Liverpool 
Answer:
 organization: British Rail; location: Liverpool