Shokalsky Island
This island belongs to the Yamalo-Nenets Autonomous Okrug which is the northern part of the Tyumen Oblast administrative division of the Russian Federation . This island is also part of the Great Arctic State Nature Reserve , the largest nature reserve of Russia . 
<triplet> Yamalo-Nenets Autonomous Okrug <subj> Tyumen Oblast <obj> located in the administrative territorial entity <subj> Russian Federation <obj> country <triplet> Tyumen Oblast <subj> Russian Federation <obj> country <triplet> Russian Federation <subj> Yamalo-Nenets Autonomous Okrug <obj> contains administrative territorial entity <subj> Tyumen Oblast <obj> contains administrative territorial entity