335071
He was also assistant astronomer and first assistant surveyor of the parallel between the states of Iowa and Minnesota , and resident surveyor and engineer for the construction of the Orange and Alexandria Railroad , Virginia .
 location: Iowa; location: Minnesota; organization: Orange and Alexandria Railroad
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: Iowa, Minnesota, Orange and Alexandria Railroad 
Answer:
 location: Iowa; location: Minnesota; organization: Orange and Alexandria Railroad