You will be given a definition of a task first, then some input of the task.
In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Passage: The Skelmanthorpe Flag is believed to have been made in Skelmanthorpe, in the West Riding of Yorkshire, in 1819. It was in part made to honour the victims of the Peterloo Massacre.
The Free Trade Hall, home of the Anti-Corn Law League, was built partly as a "cenotaph raised on the shades of the victims" of Peterloo. Until 2007 the massacre was commemorated by a blue plaque on the wall of the present building, the third to occupy the site, now the Radisson Hotel. It was regarded as a less than appropriate memorial because it under reported the incident as a dispersal, and the deaths were omitted completely. In a 2006 survey conducted by The Guardian, Peterloo came second to St. Mary's Church, Putney, the venue for the Putney Debates, as the event from radical British history that most deserved a proper monument. A Peterloo Massacre Memorial Campaign was set up to lobby for a more appropriate monument to an event that has been described as Manchester's Tiananmen Square.In 2007, Manchester City Council replaced the original blue plaque with a red one, giving a fuller account of the events of 1819. It was unveiled on 10 December 2007 by the Lord Mayor of Manchester, Councillor Glynn Evans. Under the heading "St. Peter's Fields: The Peterloo Massacre", the new plaque reads:
On 16 August 1819 a peaceful rally of 60,000 pro-democracy reformers, men, women and children, was attacked by armed cavalry resulting in 15 deaths and over 600 injuries.
In 1968, in celebration of its centenary, the Trades Union Congress commissioned British composer Sir Malcolm Arnold to write the Peterloo Overture. Other musical commemorations include "Ned Ludd Part 5" on British folk rock group Steeleye Span's 2006 album Bloody Men, and Rochdale rock band Tractor's suite of five songs written and recorded in 1973, later included on their 1992 release Worst Enemies.
The events are depicted in the 1947 film Fame Is the Spur, based on the Howard Spring novel of the same name and in the 2018 Mike Leigh film Peterloo.
Output:
What is the name of the 1947 film that depicted the massacre that commemorated by a blue plaque until 2007?