Among the crimes reported to the ward located at 1958 N. Milwaukee Ave., list down the report number of the crimes happened inside the apartment.
1958 N. Milwaukee Ave. refers to ward_office_address = '1958 N. Milwaukee Ave.'; report number refers to case_number; inside the apartment refers to location_description = 'APARTMENT'
SELECT T1.case_number FROM Crime AS T1 INNER JOIN Ward AS T2 ON T2.ward_no = T1.ward_no WHERE T1.location_description = 'APARTMENT' AND T2.ward_office_address = '1958 N. Milwaukee Ave.'