Question: The K2 building contains what commercial premises on its bottom two floors, a chain of theme restaurants founded in 1971 by Isaac Tigrett and Peter Morton?

Context paragraphs:
Security Building (St. Louis, Missouri): The Security Building is a 11-story building in Saint Louis, Missouri, built in 1892 in what was then the city's downtown financial district.  Designed by Boston architects Peabody, Stearns & Furber, the building is of granite on the bottom two floors, with pink limestone and brick above.  The building is on the National Register of Historic Places and designated an official landmark by the City of St. Louis.

K2 (building): K2 is a residential tower block in Leeds, UK.  The building is situated in the city centre, on Albion Street and Great George Street, opposite St John's Centre.  The lower two floors contain commercial premises, including a Jongleurs Comedy Club, Bar Risa (a bar with a capacity of 1500) and formerly a Hard Rock Cafe.  The building is the joint 9th tallest building in Leeds.  The building has 20 stories and is 242 ft tall.  The commercial parts of the building are known as 'The Cube'.  Ventura Outsourcing have 35000 sqft of office space in the upper floors of 'The Cube'.

Hard Rock Cafe: Hard Rock Cafe Inc. is a chain of theme restaurants founded in 1971 by Isaac Tigrett and Peter Morton in London.  In 1979, the cafe began covering its walls with rock and roll memorabilia, a tradition which expanded to others in the chain.  In 2007, Hard Rock was sold to the Seminole Tribe of Florida, and since then it is headquartered in Orlando, Florida.  As of December 2015, there were 191 Hard Rock locations in 59 countries, including 168 cafes, 23 hotels, and 11 casinos.

Hotel París (Huelva): Hotel París, also Casa de la Bola, is a hotel in Huelva, Spain.  It is located in the heart of the capital and in the rear of the Palace of the Duke of Medina-Sidonia.  It was commissioned by Antonio García Ramos and architect Francisco Monís y Morales in 1907.  Monís designed a building divided into two independent sectors.  The number 1 building was designed as for homes and businesses while the number 2 as the hotel itself.  The facade contains elements of both classical and modernist styles.  In 2009 the Number 1 building was completely rebuilt, retaining only the original facade and adding two floors as an annex building.  Today the building serves as an exhibition centre in the Provincial Council of Huelva while the second is aimed at commercial premises.

Broomfields, Bradford: Broomfields is a historic district on the south eastern edge of Bradford, West Yorkshire, England.  In 1840 it was still a mainly rural area with a population of only a few hundred people.  By 1880 it was one of the most densely populated districts of Bradford with 1500 houses, a population of about 8,000 and many commercial premises.  In 1932 a process of slum clearance and commercial regeneration was started.  Today (2014) the district is almost wholly given over to commercial premises and once again has a resident population of only about two hundred people.

American Federal Building: The American Federal Building, also known as the American Federal Savings and Loan Building, the Coral Gables Building, and the Round Building, was an iconic seven-story office building in downtown Orlando, Florida.  The bottom two floors, encircled with a cast concrete brise soleil comprise the original building, completed in 1963.  The building's unique architecture and history have inspired efforts to preserve it from demolition.

Tiffany Building (San Francisco): The Tiffany Building is an eleven-story, 100000 sqft building at Union Square in San Francisco. ; the bottom two floors contain a Tiffany & Co. store, while the upper floors contain offices.  It is also known as 350 Post Street and the Qantas Building.

Peter Morton: Peter Morton (born August 7, 1947) is a businessman from the United States.  He is the co-founder of the Hard Rock Café (along with Isaac Tigrett) and a chain of casual dining restaurants.

Newberry Plaza: Newberry Plaza is a 553 ft full amenity luxury skyscraper located in the affluent Gold Coast neighborhood of Chicago, Illinois.  It was named after the Newberry Library that once operated at its location.  The complex was completed in 1974 and has 57 floors above ground.  Gordon and Levin designed the building, which is the 56th tallest in Chicago.  When Newberry Plaza was completed it was the sixth-tallest all-residential skyscraper in the world and the first highrise in the city to have townhomes built on top of a building's pedestal, known as the Skyhomes.  The property contains commercial space under the condominium tower as well as four restaurants.  The lower level of the building contains the original location of Morton's The Steakhouse.  In addition to its astonishing views of the city, it might be best known for its prominent location as the only residential building in a well known triangle of high end restaurants on the east and Oak Street on the south side.

Garley Building fire: The Garley Building fire took place on 20 November 1996 in the 16-storey Garley commercial building () located at 232–240 Nathan Road, Jordan, Hong Kong.  It was a catastrophe that caused the loss of 41 lives and 81 injuries.  It is considered the worst building fire in Hong Kong during peacetime.  The fire damaged the bottom two floors and the top three floors of the building, while the middle floors remained relatively intact.

Supporting paragraphs: K2 (building) Hard Rock Cafe
Answer: Hard Rock Cafe