ruro[6], suro[6], sosu[6], sous[6], rowu[6], woru[6], osuw[6], owsu[6],
oru[5], rur[5], sou[5], rus[5], sur[5], sus[5], suw[5], ros[3], sos[3], rwo[3], wrr[3],
su[4], wu[4], or[2], ro[2], os[2],
