Please answer the following question: Question: What is the acronym of Maxwell's gang? If there is no answer, please output "Insufficient information to provide an answer.". Movie title: The Enforcer Context: Two gas company men are lured by a scantily-clad woman to a remote spot and killed by Bobby Maxwell (DeVeren Bookwalter). Maxwell's gang, the People's Revolutionary Strike Force (PRSF), a self-proclaimed terrorist group made up of several disgruntled Vietnam veterans, who plan to use the gas men's uniforms and van as part of an ambitious series of crimes that will make them rich.Inspector 'Dirty' Harry Callahan (Clint Eastwood) and his partner Frank DiGiorgio (John Mitchum) arrive at a liquor store where robbers have taken hostages. The robbers demand a car to take them to the airport. Dirty Harry provides one... by driving his squad car into the store and shooting all the robbers.Afterwords, Callahan's no-nonsense and by-the-book superior Captain McKay (Bradford Dillman) reprimands Callahan for "excessive use of force", injuring the hostages, and causing more than $14,000 of damage to the store, and temporarily transfers him out of the Homicide unit. While assigned to Personnel, Callahan participates in the interview process for promotions, and learns that three of the new inspectors will be female including Kate Moore (Tyne Daly), despite her very limited field experience.Meanwhile, the PRSF uses the gas company van to steal several M-72 LAW rockets and other weapons from a warehouse, killing DiGiorgio during the robbery. To Callahan's distress, Moore is his new partner. She claims to understand the risk, noting that (besides DiGiorgio) two other partners of his have died in the past five years (in the last two Dirty Harry movies). They visit the Hall of Justice for an autopsy where a bomb explodes. Callahan and Moore chase and capture the PRSF bomber. Later, Callahan and Moore meet "Big" Ed Mustapha (Albert Popwell), leader of a black militant group the bomber formerly belonged to.Although Callahan makes a deal with Mustapha for information, McKay arrests the militants for the PRSF's crimes. Callahan angrily refuses to participate in a televised press conference in which the publicity-seeking Mayor would...
A:
PRSF