245
In 1841 the population of Norbury and Roston was 510 , in 1895 there were 414 inhabitants .
 organization: Norbury and Roston
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: Norbury and Roston 
Answer:
 organization: Norbury and Roston