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.

Citigroup Inc. (“ Citigroup ”) announced today the aggregate principal amounts of the notes set forth in the first table below (the “ Any and All Notes ”) and the second table below (the “ Maximum Tender Notes ”) that were validly tendered and not validly withdrawn prior to 5:00 p.m., New York City time, on August 7, 2015 (the “ Early Tender Date ”) pursuant to its previously announced cash tender offers (each, an “ Offer ” and, collectively, the “ Offers ”) (the Any and All Notes and the Maximum Tender Notes, collectively, the “ Notes ” and each a “ series ” of Notes).

Answer: location_of_formation: Citigroup, New York City; headquarters_location: Citigroup, New York City