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This new state was characterized by an expansion of trade , culture and knowledge , and saw the construction of masterpieces of al-Andalus architecture and the library of Al-Ḥakam II which housed over 400,000 volumes .
 location: al-Andalus; person: Al-Ḥakam II
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: al-Andalus; person: Al-Ḥakam II