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A pattern of rectangular opaque coloured glazing ( which alludes to medieval precedent ) is embedded into the brick façade which act as soft light walls for the interior classrooms , which help complement the solid steel structure exposed on both exterior and interior .
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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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