Question: Does Mellow Mushroom or East of Chicago Pizza have more locations?

Context paragraphs:
The Chicago Pizza Pie Factory: The Chicago Pizza Pie Factory was a chain of pizza restaurants.  The chain originated in Crown Passage (off Pall Mall) as The Chicago Pizza Pie Factory and was started by entrepreneur Bob Payton in 1976-7.  The London establishment also had a bar.  This was the start of a series of restaurants forming the My Kinda Town chain.  The chain opened restaurants in places such as Paris and Barcelona, where they operated successfully for several decades.  The Paris site now houses a Burger King.

Chicago Franchise Systems, Inc.: Chicago Franchise Systems, Inc. franchises operates Italian-based Chicago-style restaurants in Illinois, Georgia, California and Missouri which specialize in Chicago-style cuisine They have operated since 1990, when they took over the popular Nancy's Pizza chain of pizzerias.  Nancy's itself was started in 1971 by Nancy and Rocco Palese, a couple who claims to have invented the concept of stuffed pizza.  Today, there are 36 Nancy's locations in Chicago metropolitan area, as well as two location in the Atlanta, Georgia area, and one in the Los Angeles, CA area.  CFS, Inc. operates Al's Beef, a popular Italian beef restaurant that is extremely well known in downtown Chicago and is regarded as one of the best beef sandwiches in the country.  CFS, Inc. just launched Doughocracy Pizza + Brews, a fast casual pizza place that gives customers the "Freedom to Choose" their own toppings on a hand stretched pizza crust that can be paired with local craft beers.  There are two Doughocracy restaurants, one in Geneva, Illinois and one in University City, Missouri, a suburb of St. Louis.

Bob Payton: Robert Michael Payton (25 May 1944 13 July 1994) was an American marketing man, restaurateur and hotelier.  He is known for starting a chain of American-style restaurants in London in the 1970s, starting with The Chicago Pizza Pie Factory.

Aurelio's Pizza: Aurelio's Pizza is an Illinois restaurant chain which centers its business around the thin crust variety of Chicago-style pizza.  Aurelio's Pizza has three corporate owned stores and 37 franchised locations in 6 states.  Aurelio's Pizza is the oldest Chicago pizza franchise restaurant, franchising since 1974.

Chicago Pizza and Oven Grinder Company: Chicago Pizza and Oven Grinder Company is a restaurant located in Chicago, Illinois.  The restaurant was founded in 1972, and specializes in a signature dish called the "pizza pot pie."  It enjoys local popularity and has appeared in many publications and television shows.

Pizza Pizza: Pizza Pizza Ltd. is a franchised Canadian pizza fast-food restaurant, with its headquarters in Etobicoke, Toronto.  Its restaurants are mainly in the province of Ontario.  Other locations operate in Quebec, Nova Scotia, and in western Canada.  Franchises in western Canada are mostly run through Alberta-based subsidiary Pizza 73, and in non-traditional locations such as university campuses and movie theatres throughout Canada.  It has over 500 locations, including over 150 non-traditional locations.

East of Chicago Pizza: East of Chicago Pizza is a restaurant chain based in Lima, Ohio offering different styles of pizza, buffalo wings, breadsticks, and subs.  They have 75 restaurants in Ohio, Georgia, Indiana, Kentucky, West Virginia, New York, Michigan and South Carolina.  The first restaurant was opened in 1982 as the Greenwich Pizza Barn in Greenwich, OH.

Mellow Mushroom: Mellow Mushroom Pizza Bakers is a restaurant chain that was established in 1974 in Atlanta, Georgia as a single pizzeria.  It operates as a franchise under the banner of Home Grown Industries, Inc. of Georgia, with over 150 locations throughout the United States.  Its headquarters are in Atlanta, Georgia.

Lingzhi mushroom: The lingzhi mushroom or reishi mushroom (: "língzhī"rōmaji: "reishi"Vietnamese: "linh chi" literally: "soul/spirit mushroom" ) is a species complex that encompasses several fungal species of the genus "Ganoderma", most commonly the closely related species "Ganoderma lucidum", "Ganoderma tsugae," and "Ganoderma lingzhi".  "G. lingzhi" enjoys special veneration in East Asia, where it has been used as a medicinal mushroom in traditional Chinese medicine for more than 2,000 years, making it one of the oldest mushrooms known to have been used medicinally.

Pleurotus eryngii: Pleurotus eryngii (also known as King Trumpet Mushroom, French Horn Mushroom, King Oyster mushroom, King Brown Mushroom, Boletus Of The Steppes, Trumpet Royale, Ali'i Oyster) is an edible mushroom native to Mediterranean regions of Europe, the Middle East, and North Africa, but also grown in many parts of Asia.

Supporting paragraphs: Mellow Mushroom East of Chicago Pizza
Answer: Mellow Mushroom Pizza Bakers