268983
Richard Clayton ( died 1612 ) was an English churchman and academic , Master of Magdalene College , Cambridge and St John 's College , Cambridge and Dean of Peterborough .
 Clayton, Magdalene College , Cambridge, St John 's College , Cambridge
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Clayton, Magdalene College , Cambridge, St John 's College , Cambridge