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Due to its unusual hyperbolic paraboloid shell roof , constructed in 1960-61 to designs by architect Hugh Segar ( Sam ) Scorer and structural engineer Dr Hajnal-Kónyi , there was a preservation campaign in 2004 to get the building listed to prevent it from being demolished as part of the Markham Moor junction improvement plans published by the Highways Agency .
 Hugh Segar ( Sam ) Scorer, Markham, Highways Agency
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Hugh Segar ( Sam ) Scorer, Markham, Highways Agency