Las Grutas
Las Grutas is a beach resort town located in the Argentine province of Río Negro , in the department of San Antonio , with a stable population of 8 , 000 inhabitants . 
<triplet> Las Grutas <subj> San Antonio <obj> located in the administrative territorial entity <triplet> Argentine <subj> Río Negro <obj> contains administrative territorial entity <triplet> province <subj> Argentine <obj> country <triplet> Río Negro <subj> Argentine <obj> country <subj> province <obj> instance of <subj> San Antonio <obj> contains administrative territorial entity <triplet> department <subj> Argentine <obj> country <triplet> San Antonio <subj> Argentine <obj> country <subj> Río Negro <obj> located in the administrative territorial entity <subj> department <obj> instance of