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In August of that year he moved to Davenport , Iowa , where he attended St. Ambrose University as a seminarian for the Roman Catholic Church .
 Davenport , Iowa, St. Ambrose University, Roman Catholic Church
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Davenport , Iowa, St. Ambrose University, Roman Catholic Church