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.
Text: Mr. Elkann and Fiat Chrysler Chief Executive Sergio Marchionne had approached GM in 2012 and again earlier this year, arguing that steep new technology investments will push the highly fragmented car... To Read the Full Story, Subscribe or Sign In Popular on WSJ
user
employer: Sergio Marchionne, Fiat
assistant