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Fragment B , a single sentence , has been found in the Praeparatio Evangelica - Book VI , of Eusebius of Caesarea as well as in the Commentary on Genesis of Procopius of Gaza and in an anthology of the writings of Origen compiled by Saint Basil the Great and Saint Gregory Nazianzus usually named Philokalia .
 Eusebius of Caesarea, Procopius of Gaza, Origen, Basil the Great, Gregory Nazianzus
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Eusebius of Caesarea, Procopius of Gaza, Origen, Basil the Great, Gregory Nazianzus