63699
Once a site is designated as a landmark , it is subject to the St. Louis Preservation Board , which requires that any alterations beyond routine maintenance , up to and including demolition , must have permits that are reviewed by the Board .
 St. Louis
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 St. Louis