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The deal also adds a new twist to the story of Skype 's co-founders , Niklas Zennstrom and Janus Friis , who developed Skype after creating and selling Kazaa , the controversial file-sharing service .
 company founders: Skype, Janus Friis; company founders: Skype, Janus Friis
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: 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} 
Answer:
 company founders: Skype, Janus Friis; company founders: Skype, Janus Friis