Letters that make words per minute
s, o, d, e, n, p, m, r, t, i, u, w are letters that make 'words per minute'
Words within words per minute
ER, nut, OR, words, word, Word, DS, pe, mi, te, Ute, Min, MI, nu, ut, minute, in, IN, Nut, Ds, Er, In, Te, UT, min are words within 'words per minute'