Helium, Chromium, Magnesium, Nitrogen, Phosphorus, Fluorine, Titanium, Sodium, Chlorine, Cobalt, Hydrogen, Germanium, Beryllium, Boron, Silicon, Scandium, Nickel, Oxygen, Copper, Argon, Iron, Carbon, Arsenic, Sulfur, Calcium, Zinc, Potassium, Vanadium, Lithium, Neon, Manganese, Aluminium. Is "Oxygen" in the previous list? 
Provide no explanation, directly answer with only "Yes." or "No."