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.

"I'm happy to try and make a contribution - I think I can do that better doing what I'm doing," Mr Goyder told Fairfax Media after delivering the Sir John Monash Oration at the Commonwealth Bank headquarters in Sydney on Tuesday night.

Answer: headquarters_location: Commonwealth Bank, Sydney; headquarters_location: Fairfax Media, Sydney