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Peter Norman Nissen was never a Canadian citizen and in 1921 became a British citizen. He earned little in royalties from his hut. His wife died in 1923 and he died in London in 1930.
 place of death: Peter Norman Nissen, London
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: place of death, place of birth, education degree, education institution 
Text: {0} 
Answer:
 place of death: Peter Norman Nissen, London