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The wall of the house is a 96-foot long logarithmically curved spiral , made from 200 tons of local " ironrock " sandstone dynamited ( by Eugene ) from a piece of purchased farmland near Robin Hill School , a few miles away from the house and hauled back on Eugene 's 48 Chevy flatbed truck .
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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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