Langeoog
Langeoog is one of the seven inhabited East Frisian Islands at the edge of the Lower Saxon Wadden Sea in the southern North Sea , located between Baltrum Island ( west ) , and Spiekeroog ( east ) . 
<triplet> East Frisian Islands <subj> Wadden Sea <obj> located in or next to body of water <triplet> North Sea <subj> Wadden Sea <obj> has part <triplet> Baltrum <subj> East Frisian Islands <obj> part of <subj> Wadden Sea <obj> located in or next to body of water <subj> North Sea <obj> located in or next to body of water