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National Monuments Washington National Cathedral Hart gained international stature for his The Creation Sculptures on the west façade of Washington National Cathedral , which include three tympana Ex Nihilo ( Out of Nothing ) , Creation of Day and Creation of Night , and three trumeau figures , St. Peter , St. Paul and Adam carved in Indiana limestone .
 Hart
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Hart