Tumbatu
Tumbatu Island is the third-largest island making up the Zanzibar Archipelago , part of Tanzania in East Africa . 
<triplet> Tumbatu <subj> Zanzibar Archipelago <obj> part of <subj> Tanzania <obj> country <triplet> Zanzibar Archipelago <subj> Tumbatu <obj> has part <subj> Tanzania <obj> country