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Cormac Ó Gráda is an Irish economist , a professor of economics at University College Dublin , and a prolific author of books and academic papers .
 person: Cormac Ó Gráda; organization: University College Dublin
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:
 person: Cormac Ó Gráda; organization: University College Dublin