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