Original sentence: Slopping out ended in HM Young Offenders Institution Polmont in 2007, leaving HM Prison Peterhead as the last prison where prisoners do not have access to proper sanitation, as 300 prisoners use chemical toilets due to the difficulty of installing modern plumbing in the prison's granite structure
Edited sentence: Slopping out ended in HM Young Offenders Institution Polmont in 2007, leaving HM Prison Peterhead as the last prison where prisoners do not have access to proper sanitation, as 300 prisoners are forced to use chemical toilets due to the difficulty of installing modern plumbing in the prison's granite structure