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Some other notable members are Mark Driscoll , Richard Lints , Tullian Tchividjian , Ligon Duncan , and Raymond C. Ortlund , Jr. .
 Mark Driscoll, Richard Lints, Tullian Tchividjian, Ligon Duncan, Raymond C. Ortlund , Jr.
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Mark Driscoll, Richard Lints, Tullian Tchividjian, Ligon Duncan, Raymond C. Ortlund , Jr.