Question: What company operates properties for MGM Growth Properties LLC and owns 50 percent of CityCenter in Las Vegas?

Context paragraphs:
Corey I. Sanders: Corey Sanders has served as Chief Operating Officer of MGM Resorts International since June 2010.  He oversees operations at the Company’s wholly owned properties, which in Nevada include Bellagio (resort), MGM Grand Las Vegas, Mandalay Bay, The Mirage, New York-New York Hotel and Casino, Monte Carlo Resort and Casino, Luxor Las Vegas, Excalibur Hotel and Casino, Circus Circus Las Vegas, Circus Circus Reno, Gold Strike Jean and Railroad Pass Casino.  He also oversees Beau Rivage (Mississippi) in Biloxi and Gold Strike Tunica, both in Mississippi, as well as MGM Grand Detroit.

Port of St. Helens: The Port of St. Helens is the port authority for St. Helens, Oregon, United States.  The port is a municipal corporation formed under state law to engage in public development activities.  Under Oregon law, port districts have a broad range of economic development powers.  The Port of St. Helens owns and operates properties throughout its district from the Clatsop County line in the northwest of Columbia County, to the Multnomah County line in the southeast, a six-mile-wide band that follows 51 miles of the Columbia River within Columbia County.  The boundaries include the cities of Scappoose, Warren, St. Helens, Columbia City, Rainier and Clatskanie.  The Port of St. Helens also owns and operates Scappoose Industrial Airpark in Scappoose and Scappoose Bay Marina in Warren.

Agriculture in Ivory Coast: Agriculture was the foundation of the economy in Ivory Coast and its main source of growth.  In 1987 the agricultural sector contributed 35 percent of the country's GDP and 66 percent of its export revenues, provided employment for about two-thirds of the national work force, and generated substantial revenues despite the drop in coffee and cocoa prices.  From 1965 to 1980, agricultural GDP grew by an average 4.6 percent per year.  Growth of agricultural GDP from coffee, cocoa, and timber production, which totaled nearly 50 percent of Ivory Coast's export revenues, averaged 7 percent a year from 1965 to 1980.

MGM Resorts International: MGM Resorts International is a global hospitality and entertainment company operating destination resorts in Las Vegas, Mississippi, New Jersey and Detroit, including Bellagio, MGM Grand, Mandalay Bay and The Mirage.  The company recently opened MGM National Harbor in Maryland and is developing MGM Springfield in Massachusetts.  It has a majority interest in MGM China Holdings Limited, which owns the MGM Macau resort and casino and is developing a gaming resort in Cotai.  MGM Resorts owns 50 percent of CityCenter in Las Vegas, which features ARIA Resort & Casino.  It has a majority controlling interest in MGM Growth Properties, a real estate investment trust.

Citycon: Citycon Oyj owns, develops, and manages shopping centers and other retail properties in Finland, Norway, Sweden, Estonia, and Denmark.  The company primarily rents its properties to retailers.  Citycon owns 50 shopping centres and 2 other retail properties.  Of the shopping centres, 19 are located in Finland, 19 in Norway, 9 in Sweden, including Kista Galleria, 2 in Estonia and 1 in Denmark.  In addition, Citycon leases and manages 13 shopping centres in Norway on behalf of other owners.  Citycon’s shopping centres attract approximately 200 million visitors annually.

Las Vegas Uncork'd: Las Vegas Uncork'd (also referred to as Vegas Uncork'd and Vegas Uncorked) is an annual culinary and wine event in Las Vegas, Nevada.  The concept was developed by the Las Vegas Convention and Visitors Authority, their advertising agency R&R Partners and Las Vegas resort partners who originally considered a number of magazine partners such as Bon Appetit, Food & Wine and Gourmet.  Bon Appetit was selected as the magazine partner after a review with each magazine.  The event was launched in 2007 by the Las Vegas Convention and Visitors Authority, "Bon Appétit" magazine led by Editor-in-Chief Barbara Fairchild and co-creator and Executive Director Rob O'Keefe who led the first five years of development of what Eater.com called "the world's most innovative culinary event".  Las Vegas resort partners over the years include Bellagio, Caesars Palace and Wynn Las Vegas, MGM Grand, Mandalay Bay, The Venetian, Las Vegas and The Palazzo and each year the event features more than 80 celebrated chefs and over 25 events occurring over a spectacular four-day weekend.

MGM Growth Properties: MGM Growth Properties LLC is a real estate investment trust that invests in large-scale destination entertainment and leisure resorts.  As of December 31, 2016, the company owned 11 properties operated by MGM Resorts International, comprising 27,233 hotel rooms.  The company leases the properties to MGM Resorts International via NNN Leases for an annual payment of $745 million.

Mostazafan Foundation: The Mostazafan Foundation of Islamic Revolution (Persian: بنیاد مستضعفان انقلاب اسلامی‎ ‎ ) formerly Bonyad-e Mostazafan va Janbazan (Foundation of the Oppressed and Disabled or "MFJ") is a charitable "bonyad", or foundation, in the Islamic Republic of Iran, the second-largest commercial enterprise in Iran behind the state-owned National Iranian Oil Company and biggest holding company in the Middle East.  According to one of the foundation's former directors, Mohsen Rafighdoost, Mostazafan allocates 50 percent of its profits to providing aid to the needy in the form of low-interest loans or monthly pensions, while it invests the remaining 50 percent in its various subsidiaries.  With over 200,000 employees, it owns and operates approximately 350 subsidiary and affiliate companies in numerous industries including agriculture, industry, transportation, and tourism.  Bonyad-e Mostazafan va Janbazan represented approximately 10 percent of the Iranian government’s annual budget in 2003.  the MJF has an estimated value of more than $3 billion.

CityCenter: CityCenter (also known as CityCenter Las Vegas) is a 16797000 sqft mixed-use, urban complex on 76 acre located on the Las Vegas Strip in Paradise, Nevada.  The project was started by MGM Resorts International; Dubai World became a joint partner during the project's construction phase.  It is the largest privately funded construction project in the history of the United States.  The project is connected by a people mover system to adjacent MGM properties Monte Carlo Las Vegas and Bellagio Las Vegas.  As of 2015, the "CityCenter" branding has been largely retired, with the focus instead on the Aria brand of the development's centerpiece property in names such as the "Aria Express" (formerly "CityCenter Tram") and "Aria Art Collection" (formerly "CityCenter Art Collection").

Boyne Resorts: Boyne Resorts is an owner and operator of ski and golf resorts in the United States.  The company employs over 7,000 full-time and seasonal staff.  It operates 13 resort properties: 10 ski resorts and 11 golf courses.  The company, based in Boyne Falls, Michigan, owns and/or operates properties in the U.S. states of Michigan, Montana, Washington, Maine, New Hampshire, Tennessee, and Utah, and the Canadian province of British Columbia.

Supporting paragraphs: MGM Growth Properties MGM Resorts International
Answer: MGM Resorts International