dropi[7], odrwi[6],
drop[6], dior[5], diwo[5], doiw[5], dwoi[5], piwo[5], wpoi[5], drwi[5],
dip[5], pod[5], doi[4], ido[4], poi[4], odr[4], ord[4], rod[4], por[4], pro[4], rop[4], diw[4], wid[4], piw[4], roi[3], iwo[3], owi[3], wio[3], wir[3], rwo[3],
id[3], do[3], od[3], pi[3], op[3], po[3], or[2], ro[2], iw[2],
