In this task, you're given a passage, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both passage and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the passage or linked information.

Q: Passage: Other programming on WKBF included a late-night weekend horror movie showcase hosted by Ron Sweed, whose on-air character was named The Ghoul. The Ghoul character was essentially a beatnik vampire, outfitted in a fright wig, goatee, lab coat, and a pair of sunglasses with one lens missing. It was patterned after the Ghoulardi character that was created by Ernie Anderson (with his permission), who was later to become the voice of the ABC network in the 1970s. While Anderson had no interest in doing so, he granted Sweed permission to don the costume. As WJW owned the rights to the name "Ghoulardi", the younger performer adopted the name "The Ghoul." Although WKBF has long since passed into broadcasting history, Sweed continued to make personal appearances on a fee-for-service basis in this guise until very late in life. WKBF also featured sports programming such as game telecasts from the World Football League and Cincinnati Royals NBA basketball, and harness racing.
 Link Information: With that blessing, Sweed took "The Ghoul" to Cleveland's Kaiser Broadcasting station WKBF-TV in 1971 Answer: 1971

A: What year did Ron Sweed begin his show on WKBF?
****
Q: Passage: After succeeding to his family titles in 1899 he inherited further estates in 1901, including property in Marylebone, London and earned the title of 'Britain's wealthiest bachelor'. His family's wealth was initially derived from slavery and sugar estates in Jamaica, primarily Montpelier, Jamaica. He took a lease on Audley End House, Essex which had once belonged to his ancestors, in 1904 but reportedly never felt settled there. The artist Auguste Rodin created a bust of Lord Howard de Walden in 1906 which is held in the collection kept at the Rodin Museum in Philadelphia. In 1911, in preparation for his marriage, he leased Chirk Castle, Denbighshire, which became his main residence after WWI until 1946, and where he learned the Welsh language; he later served as president of the Campaign for the Protection of Rural Wales from 1931 to 1945.
 Link Information: none Answer: none

A: What population did Essex have the year Scott-Ellis earned the title of "Britain's wealthiest bachelor"?
****
Q: Passage: A $2.5 million bond issue passed in 1922 for a stadium conceived by Burnham. Designed by architects Holabird & Roche and named Soldier Field for the veterans of World War I, cost overruns required another bond issue in 1926. By 1924, the breakwater wall stretched from 14th to 55th Streets. In 1926, Soldier Field and a portion of Lake Shore Drive were opened. Landfilling extended from 23rd Street to 56th Street; however, Promontory Point was not complete, prompting complaints regarding garbage, blowing sand and odors. Throughout the 1920s and 1930s, landfill efforts continued to fill in Burnham Park and the adjacent Northerly Island. The South Development was named for Daniel Burnham on January 14, 1927, and support increased for a world's fair in the park. Construction was completed on Lake Shore Drive, with northbound lanes named for Leif Erikson, and southbound lanes for Christopher Columbus. In 1929, construction of the park at Promontory Point began. The Great Depression delayed work and prevented construction of nearshore islands. Burnham Park was chosen for the site of the Century of Progress world's fair and a yacht basin was built south of 51st Street.
 Link Information: none Answer: none

A:
How long had the architect firm that designed Burnam Park been operating when the bond passed?
****