Complex sentence: Sceaux is home to one theater, the théâtre des Gémeaux, located in the quartier des Blagis which is part of the "Scène Nationale" network of the major theaters in France.
Split into simpler sentences: Sceaux is home to one theater, the théâtre des Gémeaux. It is part of the "Scène Nationale" network of the major theaters in France.