Question: World Series of Fighting 31: Ivanov vs. Copeland took place at a hotel and casino complex on what Indian reservation?

Context paragraphs:
2017 World Series of Poker: The 2017 World Series of Poker was the 48th annual World Series of Poker (WSOP).  It took place from May 30-July 17 at the Rio All-Suite Hotel & Casino in Las Vegas, Nevada.  There was a record 74 bracelet events including the third edition of the $565 Colossus tournament and the $10,000 No Limit Hold'em Main Event, which began on July 8.

World Series of Fighting 31: Ivanov vs. Copeland: World Series of Fighting 31: Ivanov vs. Copeland was a mixed martial arts event held on  17, 2016 (2016--) at the Foxwoods Resort Casino in Mashantucket, Connecticut.

French Lick Springs Hotel: The French Lick Springs Hotel, a part of the French Lick Resort Casino complex, is a major resort hotel in Orange County, Indiana.  The historic hotel in the national historic district at French Lick was initially known as a mineral spring health spa and for its trademarked Pluto Water.  During the period 1901 to 1946, when Thomas Taggart, a former mayor of Indianapolis, and his son, Thomas D. Taggart, were its owners and operators, the popular hotel attracted many fashionable, wealthy, and notable guests.  In the 1920s and into the 1930s, the resort became known for its recreational sports, most notably golf, but the French Lick area also had a reputation for illegal gambling.  After a series of subsequent owners and renovations, the hotel was listed on the National Register of Historic Places in 2003.  The restored hotel, with its exteriors of distinctive, buff-colored brick, reopened in 2006.

Foxwoods Resort Casino: Foxwoods Resort Casino is a hotel and casino complex owned and operated by the Mashantucket Pequot Tribal Nation on their Mashantucket Pequot Indian Reservation, within Ledyard, Connecticut.  Including six casinos, the resort covers an area of 9,000,000 sqft .  The casinos have more than 380 gaming tables for blackjack, craps, roulette, and poker and have more than 4,700 slot machines.  There are several restaurants within the casinos, among them a Hard Rock Cafe.

World Series of Fighting 35: Ivanov vs. Jordan: World Series of Fighting 35: Ivanov vs. Jordan was mixed martial arts event promoted by the World Series of Fighting that was held on March 18, 2017 at Turning Stone Casino in Verona, New York.  It was the last for the WSOF before it was rebranded as the Professional Fighters League.

Jackpot Junction Casino Hotel: Jackpot Junction Casino Hotel is a casino and hotel complex located on the Lower Sioux Indian Reservation located along the southern bank of the Minnesota River in Redwood County, Minnesota, just south of the city of Morton.  The 325000 sqft casino is owned and operated by the Lower Sioux Indian Community.  Lodging includes a 379-room hotel and a 40 space recreational vehicle park.  In addition to the casino, there are several restaurants, a convention center, a Rees Jones-designed golf course, and four live entertainment venues.  The hotel recently completed a construction project that added 101 hotel rooms to the southern end of the property.

Saganing Eagles Landing Casino: Saganing Eagles Landing Casino is a casino located just outside the city of Standish, Michigan, United States.  Opened on December 31, 2007, the casino is owned by the Saginaw Chippewa Tribal Council, which also owns the Soaring Eagle Casino in Mount Pleasant, Michigan.  This is located on the tribe's Isabella Indian Reservation.

Robinson Ekspeditionen 2008: Robinson Ekspeditionen 2008 (also known as Robinson: Fans vs. Paradise) was the eleventh season of the Danish versions of the Swedish show "Expedition Robinson".  This season premiered on September 1, 2008 and aired until November 24, 2008.  The main twist this season was that every contestant was either a fan of Robinson or was a former contestant on the show "Paradise Hotel".  The fan tribe was called "Tenga", while the Paradise tribe was called "Sembilang".  There were many additional twists this season, the first taking place in episode 1 when all of the contestants were made to take part in an elimination challenge.  Mirja Østergaard lost the challenge and was immediately eliminated.  The next twist took place in episode 2 when Jan Novaa, who had been voted out in episode one, returned to the game.  The next twist took place in episode 3 when Emil Debski swapped tribes in order to even up the tribe numbers.  In episode 4 a larger tribal swap took place in which Jan Novaa, Mads Jensen, and Michelle Jensen swapped from the Sembilang tribe to the Tenga tribe and Emil Debski, Hilde Austad, Martin Persson, Chiro "Sido" Kiarie swapped from the Tenga tribe to the Sembilang tribe.  The next twist came in episode 5 when jokers Laila Neilsen and Nick Zitouni entered the game with Laila joining the Sembilang tribe and Nick joining the Tenga tribe.  In episode 6 an individual challenge took place in which the winner would be allowed to eliminate a player from the opposing tribe.  Haider Mohamad won the challenge and chose to eliminate Sheila Nymann.  Immediately following the merge in episode 7, Haider won the same type of challenge and chose to eliminate Karina Strunge from the game.  The next twist came in episode 10 when contestant Hilde Austad used the "Talisman" she had to void any votes cast against her in tribal council.  This led to the elimination of Laila Neilsen who had the second most votes.  When it came time for the final four, the remaining contestants competed in two challenges.  The winners of these challenges would earn the right to eliminate one of the losers.  Emil won the first challenge and chose to eliminate Martin and Daniela won the second challenge and chose to eliminate Emil.  Ultimately, it was Daniela Hansen from Paradise Hotel 2006 who won the season over Robinson fan Hilde Austad by a tiebreaking cointoss after the jury vote ended in a 4-4 tie.

World Series of Fighting 10: Branch vs. Taylor: World Series of Fighting 10: Branch vs. Taylor was a mixed martial arts event that took place on June 21, 2014 at the Hard Rock Hotel & Casino in Las Vegas, Nevada, United States.

Pala Casino Resort and Spa: Pala Casino Spa and Resort is a hotel casino and spa located in Pala on the Pala Indian Reservation near San Diego, California.  It is owned and operated by the Pala Band of Mission Indians, a federally recognized tribe.

Supporting paragraphs: World Series of Fighting 31: Ivanov vs. Copeland Foxwoods Resort Casino
Answer: Mashantucket Pequot Indian Reservation