21711
Construction of the tall abutment was complete by 1928 , however the actual reservoir would not be complete until the mid-1940s following the acquisition of the Roanoke Water Works by the City of Roanoke .
 location: Roanoke; location: Roanoke
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: Roanoke, Roanoke 
Answer:
 location: Roanoke; location: Roanoke