Base Presidente Eduardo Frei Montalva
The base is located in the Chilean commune of Antártica , which is the Antarctic territory claimed by Chile ( Antártica Chilena Province , Magallanes y la Antártica Chilena Region ) . 
<triplet> Antártica <subj> Chilean commune <obj> instance of <subj> Antártica Chilena Province <obj> located in the administrative territorial entity <triplet> Antártica Chilena Province <subj> Antártica <obj> contains administrative territorial entity <subj> Magallanes y la Antártica Chilena Region <obj> located in the administrative territorial entity <triplet> Magallanes y la Antártica Chilena Region <subj> Antártica Chilena Province <obj> contains administrative territorial entity