5575
In 1974 , he played an important role in the discovery of Surface Enhanced Raman Scattering effect ( SERS ) , and he developed the ultramicroelectrode in the 1980s .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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