sixteen, twenty-eight, twenty-nine, fourteen, twenty-three, nineteen, zero, twelve, twenty-one, four, thirty-two, twenty, five, seven, eighteen, three, twenty-five, seventeen, twenty-two, twenty-seven, ten, thirty-one, one, thirteen, eight, two, six, thirty, eleven, twenty-four, fifteen, twenty-six. Is "twenty-one" in the previous list? 
Provide no explanation, directly answer with only "Yes." or "No."