199571
While the extents of the suburb have shrunk with the motorway and arterial road construction of the middle 20th century , the remaining smaller suburb thus has a highly cohesive structure , which is recognised , for example , in the residential zoning which discourages demolition of existing buildings .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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