Question: Which Korean department store chain, together with Hyundai and the Korean named "New World" chains, makes up the three major department store chains in South Korea?

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Galleria Department Store: Galleria Department Store () is an upmarket South Korean department store franchise owned by Hanwha Group.  It has 5 branches throughout Korea, notably the Luxury Hall West and Luxury Hall East, both in Apgujeong-dong, as upmarket luxury-brand fashion malls in Seoul.

Interstate Department Stores: Interstate Department Stores, Inc., was founded in 1928 as an American holding company for a chain of small department stores.  After a very rapid expansion as the result of acquisition and expansion of two discount store chains acquired in 1959 and 1960 and also two toy store chains acquired in 1967 and 1969, the firm was renamed in 1970 as Interstate Stores, Inc., to better reflect its business.  Increased competition and the changes in consumer buying habits eventually led to decreased sales in the late 1960s and early 1970s which forced the firm to file for bankruptcy in 1974.  After shedding all of its non-performing units, the firm was able to exit bankruptcy with the entire toy division intact along with a small remnant of the department store division in 1978.  The firm was renamed Toys "R" Us upon emergence from bankruptcy.

Hyundai Department Store Group: Hyundai Department Store Group (Hangul: 현대백화점그룹) operates the Hyundai Department Store chain of department stores in South Korea.  In addition, the group operates a range of service industry businesses.  Subsidiary businesses include Hyundai Home Shopping and Hotel Hyundai.

Efird's Department Store: Efird's Department Store, also known as Lourie’s Department Store, is a historic department store building located at Columbia, South Carolina.  It was built about 1870, and is a rectangular brick building renovated and expanded in 1919.  This included the addition of a third story and the installation of a new brick façade and store entrances.  Between 1919 and 1958, it housed the Columbia branch of the Charlotte, North Carolina based Efird’s Department Store chain.

Hyundai Department Store: Hyundai Department Store (Korean: 현대백화점 주식회사, Hanja: 現代百貨店株式會社, ), together with Lotte Department Store and Shinsegae, is one of the three major department store chains in South Korea.  It has 14 locations and more than $340 million in annual sales.

The Emporium (San Francisco): The Emporium was a mid-line department store chain headquartered in San Francisco, California, which operated for 99 years—from 1896 to 1995.  The flagship location on San Francisco's Market Street was a destination shopping location for decades, and several branch stores operated in the various suburbs of the Bay Area.  The Emporium and its sister department store chains were acquired by Federated Department Stores in 1995, with many converted to Macy's locations.

Halle Brothers Co.: Halle Brothers Co. of Cleveland, Ohio, commonly referred to as Halle's, is a defunct department store chain.  During most of its 91-year history Halle's focused on higher-end merchandise which it combined with personal service.  The company was the first major department store in Cleveland to open a suburban branch store.

Shinsegae: Shinsegae (Korean: 신세계, ) is a South Korean department store franchise, along with several other businesses, headquartered in Seoul, South Korea.  The name Shinsegae literally means "New World" in Korean.  Its flagship store in Centum City, Busan, is the world's largest department store, surpassing Macy's flagship Herald Square in New York City in 2009.

H2O Retailing: HO Retailing Corporation (エイチ・ツー・オー リテイリング株式会社 , Eichi Tsū Ō Riteiringu Kabushikigaisha ) is a stock holding company which is a member company of Hankyu Hanshin Toho Group.  This article covers about Hankyu Hanshin Department Stores, Inc. (株式会社阪急阪神百貨店 , Kabushikigaisha Hankyū Hanshin Hyakkaten ) a subsidiary which owns 2 department store chains: Hankyu Department Store and Hanshin Department Store.

Gus Blass Department Store: The Gus Blass Department Store is a historic commercial building at 318-324 Main Street in Little Rock, Arkansas.  It is a seven story masonry structure, built in 1912 to a design by George R. Mann, a leading Arkansas architect.  It was one of the first instances of two-way concrete slab construction in the nation, and was one of the first department stores in the state to be air conditioned (in 1936).  The Blass Department Store was for many years the city's largest department store, and remained in business here into the 1970s, ultimately becoming a part of the Dillard's department store chain before closing in 1972.

Supporting paragraphs: Hyundai Department Store Shinsegae
Answer: Lotte Department Store