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Sir William " Willie " Purves CBE , DSO , GBM ( , born 27 December 1931 ) was the first Group Chairman of HSBC Holdings following the creation of a holding company to act as parent to The Hongkong and Shanghai Banking Corporation and the Midland Bank following the former 's acquisition of Midland in 1992 .
 Purves, HSBC Holdings, The Hongkong and Shanghai Banking Corporation, Midland Bank, Midland
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Purves, HSBC Holdings, The Hongkong and Shanghai Banking Corporation, Midland Bank, Midland