Task: Text Categorization
Input (English): A highly endangered species of crocodile is restricted to the basin of this river as well as that of the\n Meta River. Tributaries of this river include the Caura, the Atabapo, and the Apure, as well as the Arauca.\n Another tributary of this river joins it near a waterfall whose name is Spanish for "drizzle." That tributary,\n whose source is in the Guiana Highlands, is the Caroni River. The Casiquiare Canal connects this river to\n the Rio Negro, thus connecting it to the Amazon system. For 10 points, name this river of Venezuela.
Output (English): Social Science