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In 2003 , Mr. Simpson sold the building to Lachlan Murdoch , son of the media baron Rupert Murdoch , who planned to transform 11 Spring Street into a spectacular single-family residence , with a lap pool in the basement .
 children: Rupert Murdoch, Lachlan Murdoch
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:  Rupert Murdoch, Lachlan Murdoch 
Answer:
 children: Rupert Murdoch, Lachlan Murdoch