Task: Text Categorization
Input (English): Cities in this geographical region include Santa Laura and Maria Helena, and a large source of revenue comes from its Calama basin. Lying mainly between the south bend of the Loa River and the mountains separating the Salado-Copiap drainage basin, this region is under the control of a nation acquired it in the 1883 Treaty of Ancon. Salt flats stretching from the Andean foothills make up a significant portion of this region. Copper mines at Chuquicamata and mineral deposits northwest of Antofagasta containing sodium nitrate have made this area the subject of conflict in the War of the Pacific. For ten points, identify this South American desert, a cool region that defines a border with Peru but is primarily found in Northern Chile.
Output (English): Social Science