Islam in Central Asia
The Hanafi school of thought of Sunnism is the most popular , with Shiism of Imami and Ismaili denominations predominating in the Pamir plateau and the western Tian Shan mountains ( almost exclusively Ismailis ) , while boasting to a large minority population in the Zarafshan river valley , from Samarkand to Bukhara ( almost exclusively Imamis ) . 
<triplet> Hanafi <subj> school of thought <obj> instance of <triplet> Sunnism <subj> Hanafi <obj> has part <triplet> Shiism <subj> Ismaili <obj> has part <triplet> Ismaili <subj> Shiism <obj> subclass of <triplet> Bukhara <subj> Samarkand <obj> twinned administrative body