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He helped to establish schools in Caernarfon and assisted with the foundation of the North Wales Training College , a teacher-training college that later became St Mary 's College , Bangor .
 Caernarfon, Bangor
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Caernarfon, Bangor