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: Saxo Bank’s Head of Social, Philip Macartney Parts Ways With Broker Saxo Bank’s Head of Social, Philip Macartney Parts Ways With Broker Mr. Macartney has served as the Head of Social at Saxo Bank since August 2014, having worked in its Copenhagen branch Advertising Print This Post
user
location_of_formation: Saxo Bank, Copenhagen
assistant