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