TRENTON, N.J. (AP) -- The mother of two children who were living periodically in a 5-by-10-foot unit at a New Jersey storage facility has been sentenced to probation. Sheena Johnson apologized at her sentencing Friday. The 28-year-old Ewing woman received 4 years' probation under an agreement in which she agreed to plead guilty to child abuse and contempt charges. Johnson initially was charged with child endangerment after her sons, then ages 5 and 10, were found in the storage facility last April. Officers checked the facility after she was arrested for slashing her ex-boyfriend's tires. The Times of Trenton reports Johnson thanked the judge for giving her a second chance. Johnson's children remain in foster care. She gets supervised visits with them and says she plans to regain custody as soon as possible.