Dry Tortugas
The Dry Tortugas are a small group of islands , located in the Gulf of Mexico at the end of the Florida Keys , United States , about west of Key West , and west of the Marquesas Keys , the closest islands . 
<triplet> Dry Tortugas <subj> Florida Keys <obj> part of <triplet> Gulf of Mexico <subj> United States <obj> country <triplet> Florida Keys <subj> Dry Tortugas <obj> has part <subj> United States <obj> country <triplet> Key West <subj> Florida Keys <obj> part of <triplet> Marquesas Keys <subj> Gulf of Mexico <obj> located in or next to body of water