Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: Gang rapist Bilal Skaf regularly sobbed in his cell, but also kept a collection of hardcore pornography, drew obscene sketches of his ex-girlfriend, and threw urine at a fellow women abuser, Robert Black Farmer, who he considered 'inferior'. The Islamic terrorists who plotted to blow up Sydney also liked pornography, which was found on their computers in prison as they waited to be tried on charges of waging a holy war on Australian society. Serial killer Ivan Milat would swallow any metal object he could so he would be sent to hospital, but was very particular about his coffee and his biscuits.Goulburn's Supermax prison is the toughest in AustraliaSerial murderers and vile rapists live side-by-side under maximum securitySecrets and quirks of the prison and notorious inmates are revealed in a new bookRapist Bilal skaf cried in his cell, but threw urine at an 'inferior' inmateGangster Michael Kanaan is so vain he wanted plastic surgery on his bullet scarsBut inmates get have access to pizza, ice cream and chocolatePornography and other material also makes its way inside, despite security 
 Question:Murderer Ronald Priestly was in the prison art room at Lithgow when Vester stabbed Brendan to death, and ended up alongside his mate in _ for organising prison riots and assaults on officers.

Supermax