196287
Arches with a core of reinforced concrete covered by facade stone for decoration are not to be included in this list , the load-bearing part of the arch should be cut stone or brick , or as follows , unreinforced concrete .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None