Question: Which pizza chain is located in the San Francisco Bay Area, Dion's or Patxi's Chicago Pizza?

Context paragraphs:
San Francisco Bay Ferry: San Francisco Bay Ferry is a passenger ferry service on the San Francisco Bay, administered by the San Francisco Bay Area Water Emergency Transportation Authority (WETA).  San Francisco Bay Ferry is not affiliated with Golden Gate Ferry, which provides passenger ferry service to Marin County.

San Francisco Bay Restoration Authority: The San Francisco Bay Restoration Authority (SFBRA) is a government agency dedicated to preserving and restoring San Francisco Bay and its shoreline.  SFBRA was created by the California legislature in 2008.  It is headquartered in Oakland.  In 2016, the SFBRA placed a funding measure on the June ballots in all 9 San Francisco Bay Area counties.  The measure, known as the San Francisco Bay Clean Water, Pollution Prevention and Habitat Restoration Program or Measure AA, passed by the required 2/3 majority in the combined county vote.  The measure provides for $500 million in funding for the authority, to be used to restore wetlands and mitigate expected sea level rise.

Oakland, California: Oakland is the largest city and the county seat of Alameda County, California, United States.  A major West Coast port city, Oakland is the largest city in the East Bay region of the San Francisco Bay Area, the third largest city overall in the San Francisco Bay Area, the eighth largest city in California, and the 45th largest city in the United States, with a population of 419,267 as of 2015 .  It serves as a trade center for the San Francisco Bay Area; its Port of Oakland is the busiest port in the San Francisco Bay, the entirety of Northern California, and the fifth busiest in the United States of America.  The city was incorporated in 1852.

San Francisco Bay Area Water Trail: The San Francisco Bay Area Water Trail is a growing network of launch and landing sites that allow people in non-motorized small boats and beachable sail craft such as kayaks, canoes, dragon boats, stand up paddle and windsurf boards, to safely enjoy San Francisco Bay through single and multiple-day trips.  The Water Trail is enhancing Bay Area communities’ connections to the Bay and creating new linkages to existing shoreline open spaces and other regional trails as well as increasing education about personal safety, navigational safety, and appropriate boating behavior near sensitive wildlife species and shoreline habitat.  The Water Trail is implemented under the leadership of the California Coastal Conservancy in close collaboration with the Association of Bay Area Governments, the San Francisco Bay Conservation and Development Commission, and the California Department of Boating and Waterways.

Dion's: Dion’s is a privately owned chain of pizza restaurants based in Albuquerque, New Mexico.  As of 2017 Dion’s operates 23 restaurants; 18 in New Mexico, 2 in Texas, and 3 in Colorado.

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.

Association of Bay Area Governments: The Association of Bay Area Governments (ABAG) is a regional planning agency incorporating various local governments in the San Francisco Bay Area in California.  It encompasses nine counties surrounding the San Francisco Bay.  Those counties are Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, Santa Clara, Santa Cruz, Solano, and Sonoma.  It has the ability to establish housing and transportation goals for cities to minimize urban sprawl by that requiring housing be zoned for near new workplace construction.  It deals with land use, housing, environmental quality, and economic development.  Non-profit organizations as well as governmental organizations can be members.  All nine counties and 101 cities within the Bay Area are voluntary members of ABAG.

Patxi's Chicago Pizza: Patxi's is a small pizzeria chain based in the San Francisco Bay Area, founded in San Francisco, California by William Freeman and Francisco “Patxi” Azpiroz.  They specialize in Chicago-style pizza.  Current locations include Palo Alto, Campbell, Lafayette, San Francisco, Greenbrae, San Jose, Seattle, and Denver.  In April, 2014, Patxi's announced plans to open sixty new stores over the next five years.  On November 6, 2015, Patxi's partnered with UberEATS to offer $10.00 cheese pizzas that were delivered in a box that said "Little Nero's" to honor the twenty-fifth anniversary of the release of the comedy film "Home Alone".

San Francisco Peninsula: The San Francisco Peninsula is a peninsula in the San Francisco Bay Area that separates San Francisco Bay from the Pacific Ocean.  On its northern tip is the City and County of San Francisco.  Its southern base is in northern Santa Clara County, including the cities of Palo Alto, Mountain View and Los Altos.  Most of the Peninsula is occupied by San Mateo County, between San Francisco and Santa Clara counties, and including the cities and towns of Atherton, Belmont, Brisbane, Burlingame, Colma, Daly City, East Palo Alto, El Granada, Foster City, Hillsborough, Half Moon Bay, La Honda, Los Altos, Menlo Park, Millbrae, Mountain View, Pacifica, Palo Alto, Portola Valley, Redwood City, San Bruno, San Carlos, San Mateo, South San Francisco, and Woodside.

Arizmendi Bakery: Arizmendi Bakery is a bakery located in the San Francisco Bay Area of California in the United States.  They have locations in San Francisco, Berkeley, Emeryville, San Rafael, and in Oakland.  They are a worker-owned cooperative.  In 2011, they were voted the best bakery in the east bay by the "East Bay Express".  The bakery makes pastries, pizza and bread.  Arizmendi Bakery came out of the Cheese Board Collective, forming in 1997.  It was named after Basque priest and labor organizer José María Arizmendiarrieta.  Food reviewer Tamara Palmer, from "SF Weekly", called their Auntie Mabel's Kookie Brittle the best cookie in San Francisco.  They also make fruitcake, using local dried fruits from the Rainbow Grocery Cooperative.  During December 2011, the San Francisco location was selling 400 fruitcakes daily.

Supporting paragraphs: Dion's Patxi's Chicago Pizza
Answer: Patxi's