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When Lenin was in London ( 1902 – 1903 ) the newspaper was edited from a small office at 37a Clerkenwell Green , EC1 , with Henry Quelch arranging the necessary printworks .
 person: Lenin; location: London; person: Henry Quelch
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:
 person: Lenin; location: London; person: Henry Quelch