oreo[4], rewa[4], wora[4], ower[4], rewo[4],
era[3], rea[3], aro[3], ora[3], ero[3], oro[3], ewa[3], owa[3], ewo[3], owe[3], owo[3], rwa[3], war[3], rew[3], wre[3], rwo[3],
eo[2], ar[2], er[2], re[2], or[2], ro[2], ew[2], we[2],
