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The endowment was brought about by alumni of UC who come from what is known in the Chemistry Department as " the Cupola Era " ( the years between 1946 and 1963 ) , a time when " remarkable contributions to science arose out of the College of Chemistry at Berkeley , when such luminaries as Professors William Giauque , Glenn Seaborg and Melvin Calvin were teaching and winning national and international awards . "
 William Giauque, Glenn Seaborg, Melvin Calvin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 William Giauque, Glenn Seaborg, Melvin Calvin