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: And in equities news, Qantas chief executive Alan Joyce addresses the National Press Club, National Australia Bank chief executive Andrew Thorburn speaks at an Australian Israel Chamber of Commerce lunch in Sydney and Clean Seas Tuna holds its annual general meeting.
user
chief_executive_officer: Qantas, Alan Joyce; employer: Alan Joyce, Qantas
assistant