Given the input sentence, please extract the subject and object containing a certain relation in the sentence according to the following relation types, in the format of "relation1: word1, word2; relation2: word3, word4". Relations include: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

British private equity pioneer Guy Hands said he would share ownership of buyout firm Terra Firma Capital Partners Ltd. for the first time with Justin King, former chief executive officer of J Sainsbury PLC, who is joining as vice chairman, as part of a succession plan.

Answer: employer: Guy Hands, Terra Firma Capital Partners