Given phrases that describe the relationship between two words/phrases as options, extract the word/phrase pair and the corresponding lexical relationship between them from the input text. The output format should be "relation1: word1, word2; relation2: word3, word4". Options: 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.

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.

Answer: chief_executive_officer: Qantas, Alan Joyce; employer: Alan Joyce, Qantas