Question: What chain went bankrupt following a finding by the U.S. Department of Labor that it had engaged in wage theft, Papa John's Pizza or Upper Crust Pizzeria?

Context paragraphs:
Upper Crust Pizzeria: Upper Crust Pizzeria is a Boston, Massachusetts based chain of pizzeria restaurants.  The chain went bankrupt following a finding by the U.S. Department of Labor that it had engaged in wage theft (not paying workers their legally required wages).

Bradlees: Bradlees was a chain of discount department stores, which operated primarily in the northeastern United States.  The chain went bankrupt in 2000 and all of its stores were closed by March 15, 2001.

Tilted block faulting: Tilted block faulting, also called rotational block faulting, is a mode of structural evolution in extensional tectonic events, a result of tectonic plates stretching apart.  When the upper lithospheric crust experiences extensional pressures, the brittle crust fractures, creating detachment faults.  These normal faults express themselves on a regional scale; upper crust fractures into tilted fault blocks, and ductile lower crust ascends.  This results in uplift, cooling, and exhumation of ductily deformed deeper crust.  The large unit of tilted blocks and associated crust can help form an integral part of metamorphic core complexes and can occur on both continental and oceanic crust.

Wage theft: Wage theft is the denial of wages or employee benefits that are rightfully owed to an employee.  Wage theft can be conducted through various means such as: failure to pay overtime, minimum wage violations, employee misclassification, illegal deductions in pay, working off the clock, or not being paid at all.

Papa John's Pizza: Papa John's Pizza is an American restaurant franchise company.  It runs the third largest take-out and pizza delivery restaurant chain in the United States, with headquarters in Jeffersontown, Kentucky, a suburb of Louisville.

Adverse Effect Wage Rate: The Adverse Effect Wage Rate (AEWR) is the minimum wage that the U.S. Department of Labor (DOL) has determined "must be offered and paid to U.S. and alien workers by agricultural employers of nonimmigrant H-2A agricultural workers" (Federal Register, February 10, 1999, p. 6690).  Where agricultural employers offer employment to nonimmigrant foreign workers, payment of at least the AEWR is required.  Published once a year, usually in early February, by DOL with the assistance of the U.S. Department of Agriculture, the AEWR sets a separate minimum wage rate (i.e., a rate that will not adversely affect the employment opportunities of U.S. workers) for each state (see 20 CFR 655).

Rhubarb pie: Rhubarb pie is a pie with a rhubarb filling.  Popular in the UK, where rhubarb has been cultivated since the 1600s, its introduction to Europe from China is attributed to Marco Polo.  Besides diced rhubarb, it almost always contains a large amount of sugar to balance the intense tartness of the plant.  A strawberry rhubarb pie, is a type of tart and sweet pie made with a strawberry and rhubarb filling.  Sometimes tapioca is also used.  The pie is usually prepared with a bottom pie crust and a variety of styles of upper crust.  In the United States, often a lattice-style upper crust is used.  This pie is a traditional dessert in the northeastern United States but is little known outside of that region in the US.  It is part of New England cuisine.  Rhubarb pies and desserts are popular in Canada too since the rhubarb plant can survive in cold weather climates.

Agnew-Surpass: Agnew-Surpass Shoe Stores Ltd. was a Canadian shoe retailer.  Agnew Shoes was founded in Brantford, Ontario in 1879, and merged in 1928 with Surpass Stores.  In 1962 the chain was acquired by American firm Genesco, and in 1987 it was sold to a numbered company controlled by former Bata Shoe executive Michael Graye.  Despite being the largest chain of shoe stores in Canada, the chain went bankrupt in 2000.  The company maintained locations on major shopping streets, sometimes in the same location for decades, and moved with the times, opening in shopping malls when those became popular.  In its last days, franchising was attempted but all to no avail.The rise and fall of Agnew-Surpass is a relatively small scale example of the fate of Canadian business in the 21st century.  Old, large firms such as the T. Eaton Company have vanished entirely and others such as the former Steel company of Canada teeter under bankruptcy protection.  Meanwhile, surviving retailers such as Canada's oldest corporation, The Hudson's Bay Company are foreign owned.

Dylan Orr: Dylan Orr (born 1979) is the Director of the Office of Labor Standards for the City of Seattle.  Appointed by Mayor Murray in May 2015, Orr is responsible for enforcing Seattle's historic minimum wage law, as well as its paid sick and safe time law, wage theft law, and fair chance employment law.  Previously, Orr served as Chief of Staff to Assistant Secretary Kathy Martinez in the Office of Disability Employment Policy.  As part of the United States Department of Labor, he contributed to the development of national disability employment-related regulations and policies, including regulations issued under Section 503 of the Rehabilitation Act of 1973.  As the Department of Labor representative, he also worked with the White House Office of National AIDS Policy on the implementation of the President's National HIV/AIDS Strategy, in addition to making significant contributions to several federal LGBT policies and regulations.  Previously, he served as Special Assistant/Advisor to Assistant Secretary Martinez.  Upon his appointment to his role as Special Assistant in 2009, he became the first openly transgender person appointed to any U.S. presidential administration.

PJI: PJI Korea Co, Ltd. (Papa John's International Korea Co, Ltd., hangul:피제이아이코리아, PJI코리아 (파파존스인터내쇼날코리아)) is a Korean pizza franchise.  Headquartered in Seoul, Korea, it was established in 2005.  It is a branch of the United States restaurant chain Papa John's Pizza.

Supporting paragraphs: Upper Crust Pizzeria Papa John's Pizza
Answer: Upper Crust Pizzeria