39852
CyKey ( pronounced sai-ki ) is named after the Microwriter chord system 's co-inventor Cy Endfield , who died in 1995 but the name also reflects its intuitive nature .
 Cy Endfield
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Cy Endfield