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By 1850 he had become the longest-serving member , and so became the Father of the House of Commons for the last 11 years of his life .
 location: House of Commons
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:
 location: House of Commons