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