51402
Several locks were built in the early 20th century to make the Allegheny River navigable for 72 miles upstream from Pittsburgh to East Brady .
 location: Allegheny River; location: Pittsburgh; location: East Brady
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: Allegheny River, Pittsburgh, East Brady 
Answer:
 location: Allegheny River; location: Pittsburgh; location: East Brady