Complex sentence: Tercera División A de Chile (Third Division A of Chile), is the third category of Chilean football (soccer), and it is organized by the Federación de Fútbol de Chile, and the Asociación Nacional de Fútbol Amateur de Chile.
Split into simpler sentences: Tercera División A de Chile (Third Division A of Chile), is the third tier of Chilean football (soccer). It is organized by the Federación de Fútbol de Chile and the Asociación Nacional de Fútbol Amateur de Chile.