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History Anglian Windows , now branded as Anglian Home Improvements and trading as part of the Anglian Group , was established in 1966 by George Williams when he opened a factory in Norwich .
 location: Norwich
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: Norwich 
Answer:
 location: Norwich