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is a money saving show presented and written by money saving expert Martin Lewis , co-presented by Ruth Liptrot .
 person: Martin Lewis; person: Ruth Liptrot
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Martin Lewis, Ruth Liptrot 
Answer:
 person: Martin Lewis; person: Ruth Liptrot