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