180089
History Contractor was John Firbank took eight years to construct the railway , which was opened on 4 August 1873 , with its terminus initially at Monmouth Mayhill .
 location: Monmouth
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: Monmouth 
Answer:
 location: Monmouth