Question: Frisch's Big Boy is a regional Big Boy restaurant chain with headquarters in Cincinnati, Ohio, Big Boy Restaurants International, LLC is an American restaurant chain headquartered in Warren, in which US state?

Context paragraphs:
Shoney's: Shoney’s is a privately held restaurant chain headquartered in Nashville, Tennessee, United States.  Operating primarily in the South, Shoney's also has restaurants in the Midwest and Lower Mid-Atlantic states.  Founder Alex Schoenbaum became a licensee of Big Boy Restaurants (originally known as Parkette) in 1952.  Two years later the name was changed to Shoney's, and aggressive subfranchising followed.  Thirty years later, having outgrown its Big Boy territory, Shoney's dropped the Big Boy affiliation.

Wayne McAllister: Wayne Douglas McAllister (November 17, 1907 – March 22, 2000) was a Los Angeles-based architect who was a leader in the Googie style of architecture that embraced the automobile and the Space Age.  Inspired by tail fins and gleaming chrome, he elevated the drive-in restaurant and the theme hotel to futuristic works of art.  His 1941 El Rancho Vegas was the very first resort hotel on the Las Vegas Strip, and his iconic 1949 Bob's Big Boy restaurant in Burbank, California is a California historical landmark.  He created iconic circular drive-in restaurants in Southern California, including Simon's, Herbert's, and Robert's in the 1930s.

Big Boy Restaurants: Big Boy Restaurants International, LLC is an American restaurant chain headquartered in Warren, Michigan, in Metro Detroit.  Frisch's Big Boy Restaurants is a restaurant chain with its headquarters in Cincinnati, Ohio.  The Big Boy name, design aesthetic, and menu were previously licensed to a number of regional franchisees.

Bob's Big Boy: Bob's Big Boy is a restaurant chain founded by Bob Wian in Southern California in 1936, originally named "Bob's Pantry".  It is now part of Big Boy Restaurants International, the current primary trademark owner and franchisor of the Big Boy system.  As of September 2017, only five Bob's Big Boy Restaurants remain in operation, all in Southern California.

Frisch's: Frisch's Big Boy is a regional Big Boy restaurant chain with headquarters in Cincinnati, Ohio.  For many years a Big Boy franchisee, today Frisch's is the exclusive owner of the Big Boy trademark in Indiana, Kentucky, and most of Ohio and Tennessee and has no affiliation with Big Boy Restaurants International.  In March 2017, there were 121 restaurants in Indiana, Kentucky, and Ohio.  This includes 21 Big Boy stores in Cincinnati, 6 in Dayton, Ohio, and 6 in Louisville, Kentucky.  Frisch's is the oldest, longest surviving regional Big Boy operator, excluding Bob's Big Boy in California, which was the original Big Boy restaurant and franchisor.

Sambo's: Sambo's is a restaurant, formerly an American restaurant chain, started in 1957 by Sam Battistone, Sr., and Newell Bohnett.  Though the name was taken from portions of the names of its founders, the chain soon found itself associated with "The Story of Little Black Sambo".  Battistone, Sr., and Bohnett capitalized on the connection by decorating the walls of the restaurants with scenes from the book, including a dark-skinned boy, tigers, and a pale, magical unicycle-riding man called "The Treefriend".  By the early 1960s, the illustrations depicted a light-skinned boy wearing a jeweled Indian-style turban with the tigers.  A kids club, Sambo's Tiger Tamers (later called the Tiger Club), promoted the chain's family image.

Johnie's Coffee Shop: Johnie's Coffee Shop is a former coffee shop and well known example of Googie architecture located on the corner of Wilshire Boulevard and Fairfax Avenue in Los Angeles, California.  Architects Louis Armét and Eldon Davis of Armét & Davis designed the building, contributing to their reputation as the premier designers of Space Age or Googie coffee shops—including the landmark Pann's coffee shop in Ladera Heights, Norms Restaurant on La Cienega Boulevard, and several Bob's Big Boy restaurants.

Darlin' Be Home Soon: "Darlin' Be Home Soon" (or "Darling Be Home Soon") is a song written by John Sebastian of The Lovin' Spoonful for the soundtrack of the 1966 Francis Ford Coppola film "You're a Big Boy Now".  It has been described as "...one of the most heartfelt songs about being away from a loved one, written from the point of view of a musician on the road writing a letter."  It appeared on The Lovin' Spoonful's 1967 soundtrack album "You're a Big Boy Now" and was released as a single, reaching #15 on the US pop charts.  In the same year, a version by Bobby Darin reached #93 on the US charts, saxophonist Bud Shank put the track on his album "A Spoonful of Jazz", and Billie Davis put it on the B-side of a single in the UK.

Bob Wian: Robert C. "Bob" Wian (June 15, 1914 – March 31, 1992) was the founder of the Big Boy restaurant chain.  The restaurant got its start in a 10-stool Glendale, California, hamburger stand in 1936 with an investment of $350 which Wian got from the sale of a used car.  He sold the Big Boy chain to the Marriott Corp. in 1967 for $7,000,000.  Wian died in Newport Beach, California, and was survived by his wife, June, and two sons, Chapman Baehler and Casey Wian, two daughters, Barbara Baehler and Julie Wian, and sisters Doris Weis and Katherine Kurvink.

Alex Schoenbaum: Alex Schoenbaum (August 8, 1915 – December 6, 1996) was an American collegiate football player and businessman in the hospitality industry, eventually operating a chain of restaurants and later, motels.  He is best remembered for developing the Shoney's restaurant chain in the southeastern United States, most of which were originally franchised Big Boy locations.

Supporting paragraphs: Frisch's Big Boy Restaurants
Answer: Michigan