ggg ggi ggo ggr ggv gig gii gio gir giv gog goi goo gor gov grg gri gro grr grv gvg gvi gvo gvr i-v igg igi igo igr iii iio iir io- iog ioi ioo ior iov ir- irg iri iro irr irv ivg ivi ivo ivr ivv o-i ogg ogi ogo oii oio oir oiv oo- oog ooi ooo oor oov or- org ori oro orr orv ov- ovi ovo ovv rgg rgi rgo rgr rgv rig rii rio rir riv rog roi roo ror rov rrg rri rrr rvg rvi rvo rvr rvv vgg vgo vgr vi- vig vii vio vir viv vog voi voo vor vov vrg vri vrr vvg vvi vvo vvr vvv