Original sentence: Marchwicki commited all of his killings in the following areas: in the neighbourhoods of Czeladź, Będzin, and adjoining towns in Zagłębie Dąbrowskie and Upper Silesia
Edited sentence: Marchwicki committed all of his killings in the following areas: in the neighbourhoods of Czeladź, Będzin, and adjoining towns in Zagłębie Dąbrowskie and Upper Silesia