1) Borstal 2) Helpful 3) Jail 4) Reformative 1) Helpful 2) Reformative 3) Tending to reform 
• (a.) Tending to produce reformation; reformative. • (n.) An institution for promoting the reformation of offenders.
correctional institution for the treatment, training, and social rehabilitation of young offenders.[1 related articles]
Re·form'a·to·ry adjective Tending to produce reformation; reformative. 
[n] - correctional institution for the detention and discipline and training of young or first offenders
reform school noun correctional institution for the detention and discipline and training of young or first offenders