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Devon archaeologist Ralegh Radford excavated at the site from 1933 through to 1938, and he pioneered the hypothesis that Tintagel Castle had been a monastery during Period II. He came to this conclusion based upon some similarities in the structures Master of Arts  the Early Medieval elements of Tintagel Castle and the seventh century monastery at the site of Whitby Abbey in Yorkshire.
 education degree: Ralegh Radford, Master of Arts 
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: place of death, place of birth, education degree, education institution 
Text: {0} 
Answer:
 education degree: Ralegh Radford, Master of Arts 