Original sentence: SPW-50P (Schützenpanzerwagen) - National Volks Armee (NVA) designation for the Russian-built BTR-50P.SPW-50PK - NVA designation for the Russian-built BTR-50PK
Edited sentence: SPW-50P (Schützenpanzerwagen) - National Volks Armee (NVA) designation for the Soviet-built BTR-50P.SPW-50PK - NVA designation for the Soviet-built BTR-50PK