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.

It is an issue, along with broader issues such as innovation, advanced manufacturing, taxation and Australia's role in the digital age that a group of women tech chief executives from Twitter, Microsoft, Pandora and REA Group will discuss with me on Thursday at the Melbourne Press Club.

Answer: headquarters_location: REA Group, Melbourne