ggg ggi ggn ggr ggz gig gii gin gir giz gni gnn gnr grg gri grn grr gzr igg igi ign igr iii iin iir in- ing ini inn inr ir- irg iri irn irr izi izz n-i ngg ngi ngn nig nii nin nir niz nng nni nnn nnz nrg nri nrn nrr nrz nzg nzi nzz rgg rgi rgn rgr rig rii rin rir riz rng rni rnn rnr rnz rrg rri rrn rrr z-g zgg zgi zig zin zir ziz znn zzr zzz