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It lies on the eastern isthmus of the Bay of Gibraltar , north of the Gibraltar–Spain border , which lies north of the British overseas territory of Gibraltar , with which it has close economic and social links . 
<triplet> Gibraltar–Spain border <subj> Gibraltar <obj> applies to jurisdiction <triplet> British overseas territory <subj> Gibraltar <obj> contains administrative territorial entity <triplet> Gibraltar <subj> Bay of Gibraltar <obj> located in or next to body of water <subj> British overseas territory <obj> instance of