Russian dialects
*Southern , in the western and southern parts of European Russia; this has various types of vowel reduction and fricative ; this group makes up a dialect continuum with Belarusian , although it differs significantly from the Ukrainian dialects to the further south , sharing only a few isoglosses ( namely the fricative pronunciation of Proto-Slavic *g ) . 
<triplet> various types <subj> vowel reduction <obj> subclass of