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Zopa.com , which operates in Britain , introduced a similar service in March -LRB- also with backing from Benchmark Capital -RRB- and has attracted more than 50,000 registered users , said Richard Duvall , Zopa 's chief executive .
 company founders: Zopa, Richard Duvall
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: ethnicity, place lived, geographic distribution, company industry, country of administrative divisions, administrative division of country, location contains, person of company, profession, ethnicity of people, company shareholder among major shareholders, sports team of location, religion, neighborhood of, company major shareholders, place of death, nationality, children, company founders, company founded place, country of capital, company advisors, sports team location of teams, place of birth 
Text: {0} 
 Entity Pairs:  Zopa, Richard Duvall 
Answer:
 company founders: Zopa, Richard Duvall