Question: In between Mellow Mushroom and Gatti's Pizza which one has corporate offices are in Austin, Texas?

Context paragraphs:
Solairus Aviation: Solairus Aviation is a full-service private aircraft management and charter company that provides clients with expertise in acquiring and operating a wide range of private aircraft.  The company manages 120 jets for businesses and wealthy individuals, about 1/3 of which are available for on-demand charter.  The aircraft are based in more than a dozen states throughout the U.S. Solairus has about 400 employees in 20 states and reports 300 percent growth in revenues in the past five years.  Employees are based at its headquarters in Petaluma, CA and other offices in Denver, CO, and Purchase, N.Y. Most aircraft are based on the U.S. West and East Coasts, and flight and maintenance crew members are based at each aircraft’s location.  In the Spring of 2013, Solairus doubled their corporate offices in Petaluma, CA while also expanding their East Coast, US charter sales team.  Solairus designates an aircraft’s pilot or maintenance supervisor as one of four support team members for each client.  Besides a staff member based with the aircraft, Solairus provides the client with two office-based team members and a company officer who has the authority to respond immediately to any concerns and who has the ultimate responsibility for a client’s satisfaction.

Time Warner Cable: Time Warner Cable (TWC) was an American cable television company.  Prior to its purchase by Charter Communications in 2016, it was ranked the second largest cable company in the United States by revenue behind only Comcast, operating in 29 states.  Its corporate headquarters were located in the Time Warner Center in Midtown Manhattan, New York City, with other corporate offices in Stamford, Connecticut; Charlotte, North Carolina; and Herndon, Virginia.

Gatti's Pizza: Gatti's Pizza (formerly Mr. Gatti's) is a Southeastern United States pizza-buffet chain.  Gatti's Pizza, founded in 1964 is owned by Blue Sage Capital, a private equity investment firm.  The corporate offices are in Austin, Texas.

Riverside Park (Austin): Riverside Park was a ballpark located in Austin, TX and was the home to many Austin teams since 1888 when the Austin Hix, the city's initial baseball team, combined with the Austin Red Sox to exist as the first edition of the Austin Senators.  The ballpark was located southeast of Congress Avenue Bridge.  It was also the place of the largest shutout in Texas League history on July 23, 1907 between the Austin Senators and the San Antonio Bronchos in the second game of a doubleheader.  In the early 20th century, Austin and San Antonio were bitter rivals, and this was no exception.  During the first game, an Austin baserunner who had overslid 3rd base was tagged but was called safe by the umpire.  (At the time, there was only one umpire who made the decisions of "out," "safe," "strike," and "ball.")  The Bronchos felt slighted that day by the umpire in-charge on many calls and tried to get the call changed.  The umpire did not change his call, and the Bronchos left the field in protest forfeiting the game to Austin.  Because a forfeit was not viable due to potential hefty fines levied by the league offices, San Antonio came up with a form of retaliation for the 2nd game.  Infielder Art Griggs was the starting pitcher; Griggs was relieved by another infielder Ike Pendleton soon after and followed by George "Cap" Leidy.  The Senators batted in order the whole game while the Bronchos batted whenever they wanted to and batted out of order also.  Austin stole 23 bases, scored 44 runs on 36 hits due to San Antonio's sloppy defense, which made nine errors, and farcical pitching.  The final score was Austin 44, San Antonio 0; the score looked more like a football score than baseball score.

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.

Allsup's: Allsup's, sometimes misspelled as Allsups, is a family-owned chain of convenience stores that serves New Mexico and Texas, with one store in Frederick, Oklahoma.  Although founded in Roswell, New Mexico in 1956 by Lonnie and Barbara Allsup, its corporate offices have been located in Clovis, New Mexico for decades.  Allsup's is ranked as the state's #1 privately owned corporation.  It is also the largest convenience store chain in the state of New Mexico.

CTLGroup: CTLGroup is an internationally recognized expert consulting engineering and materials science firm that provides engineering, testing and scientific services to clients in the following markets: Building & Facilities; Emergent Solutions; Energy & Resources; Litigation & Insurance; Materials & Products; and Transportation.  Its staff includes professionals from the fields of civil, structural, mechanical engineering, architecture, geology, chemistry, ceramics and materials science.  Serving clients from around the globe, CTLGroup maintains corporate offices and laboratories in Chicago (Skokie, Illinois) and Doha, State of Qatar and consulting offices in Austin, TX; Bradenton, FL; Horsham, PA; Naperville, IL; and Washington, DC.  Services for clients in New York and North Carolina are provided through CTL Engineers & Construction Technology Consultants, P.C. Website: www.ctlgroup.com.

Las Colinas: Las Colinas is an upscale, developed area in the Dallas suburb of Irving, Texas.  Due to its central location between Dallas and Fort Worth and its proximity to DFW International Airport and Love Field Airport, Las Colinas has been a viable place in the Metroplex for corporate and business relocation.  As a planned community, it has many corporate offices, luxury hotels, landmark office towers, luxury townhomes, distinguished single-family homes, private country clubs, gated enclaves and urban lofts.

Philadelphia 76ers Training Complex: The Philadelphia 76ers Training Complex and Corporate Offices is a 125,000-square-foot Training Complex and office building, which is the largest in the NBA.  The Complex houses the team training center and corporate offices.  It was opened in September 2016.

LowerMyBills.com: LowerMyBills.com is a consumer finance corporate website that connects prospective mortgage borrowers to lenders.  It was founded by Matt Coffin in 1999.  Its corporate offices are in Los Angeles, California, United States.

Supporting paragraphs: Mellow Mushroom Gatti's Pizza
Answer: Gatti's Pizza