watta[7], aowca[6], otawa[6],
taca[6], taco[6], tata[6], tato[6], watt[6], owca[5], wata[5], otaw[5], wato[5], wota[5],
tac[5], ata[4], tao[4], twa[4], wat[4], owa[3],
co[3], at[3], ta[3], ot[3], to[3], aa[2],
