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