Boron, Hydrogen, Caesium, Selenium, Neon, Oxygen, Argon, Helium, Phosphorus, Nickel, Nitrogen, Ruthenium, Lanthanum, Beryllium, Technetium, Aluminium, Rhodium, Xenon, Europium, Gallium, Yttrium, Silver, Cadmium, Praseodymium, Indium, Palladium, Chromium, Cerium, Krypton, Antimony, Carbon, Zirconium, Niobium, Barium, Promethium, Cobalt, Zinc, Bromine, Tellurium, Vanadium, Titanium, Samarium, Gadolinium, Lithium, Calcium, Iodine, Magnesium, Rubidium, Potassium, Strontium, Germanium, Silicon, Scandium, Manganese, Molybdenum, Sulfur, Copper, Arsenic, Chlorine, Tin, Terbium, Sodium, Fluorine, Iron. Is "Lanthanum" in the previous list? 
Provide no explanation, directly answer with only "Yes." or "No."