arso[4], osra[4], raso[4], rosa[4], wora[4], owsa[4], sowa[4], wars[4], ssaw[4],
aro[3], ora[3], osa[3], ars[3], ras[3], sra[3], ros[3], sas[3], sos[3], owa[3], rwa[3], war[3], rwo[3], swa[3], was[3],
ar[2], or[2], ro[2], as[2], os[2],
