Original sentence: The external and internal boundaries of that linguistic sub-group are not clearly definitive, as among the transitional Torlakian dialects, as well as between the Macedonian and the Bulgarian languages.The external boundaries of the Balkan Slavic/Eastern South Slavic area can be defined with the help of some structural features
Edited sentence: The external and internal boundaries of the Balkan Slavic dialects are not clearly definitive, as among the transitional Torlakian dialects, as well as between the Macedonian and the Bulgarian languages.The external boundaries of the Balkan Slavic area can be defined with the help of some structural features