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It also includes on its first two pages a collage with 27 1 s in different colours ( all of them following the same art as the cover ) with the sentence " 27 No. 1 singles = " 1 " " ( which was used as a catch phrase for the promo ads for the album ) , and a foreword by George Martin .
 person: George Martin
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: George Martin