[{"id":"christian-1","type":"webpage","title":"Christianity: The New Testament.","URL":"/tree/christian"},{"id":"christian-2","type":"webpage","title":"Christianity: Justo L. Gonzalez, The Story of Christianity (2010).","URL":"/tree/christian"},{"id":"protestant-1","type":"webpage","title":"Protestant: The Augsburg Confession (1530).","URL":"/tree/protestant"},{"id":"protestant-2","type":"webpage","title":"Protestant: Alister E. McGrath, Reformation Thought (2012).","URL":"/tree/protestant"}]