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They had no succession of priests , and professed to keep up the celebration of a valid Eucharist by placing a few crumbs of some of the bread which had been consecrated by Dioscorus into a vessel of meal , and then using as fully consecrated the bread baked from it .
 Dioscorus
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Dioscorus