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The birth of the University institution can be traced to this development , as several universities and educational institutions of the Arab world such as the University of Al Quaraouiyine , Al Azhar University , and Al Zaytuna University are considered to be the oldest in the world .
 organization: University; organization: University of Al Quaraouiyine; organization: Al Azhar University; organization: Al Zaytuna University
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:
 organization: University; organization: University of Al Quaraouiyine; organization: Al Azhar University; organization: Al Zaytuna University