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He returned to Guatemala to serve as auxiliary bishop of the diocese of San Marcos starting in 1966 , and as its titular bishop from 1971 until 1983 .
 location: Guatemala; location: San Marcos
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Guatemala; location: San Marcos