91731
An excellent specimen of the Camelback truss bridge , it is the oldest surviving bridge of its kind in the Southeastern United States , having been built in 1891 .
 location: Camelback; location: Southeastern United States
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: Camelback, Southeastern United States 
Answer:
 location: Camelback; location: Southeastern United States