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.

AMP Capital managing director office and industrial Louise Mason said the landmark Quay Quarter Sydney project was a "further demonstration of AMP Capital's long-term commitment to Circular Quay", where it built Australia's first skyscraper and where the company has been located for more than 50 years.

Answer: headquarters_location: AMP Capital, Sydney