What is the fine-grained topic of the following text: “The number of inmates released from the various prisons are: MSP Oko 22; Benin Prisons (old) 33; Ozalla Farm Centre 3; Auchi Prison 7; Female Prison Auchi 1; Ubiaja Prison 3; Ogba Farm Project, 15. Only return the topic.
Inmate release numbers from various prisons