auror[7],
auro[6], rura[6], ruro[6], uowa[6], waru[6], rowu[6], woru[6], wora[4],
aur[5], oru[5], rur[5], aro[3], ora[3], oro[3], owa[3], owo[3], rwa[3], war[3], rwo[3], wrr[3],
au[4], wu[4], ar[2], or[2], ro[2],
