g-p ggg ggi ggn ggp ggr gig gii gin gip gir gni gnn gnp gnr gpg gpi gpn gpp gpr grg gri grn grp grr igg igi ign igp igr iii iin iip iir in- ing ini inn inp inr ipg ipi ipn ipp ipr ir- irg iri irn irp irr n-i ngg ngi ngn ngp nig nii nin nip nir nng nni nnn nnp npg npi npn npp npr nrg nri nrn nrp nrr p-p pgg pgi pgn pgp pgr pig pii pin pip pir pn- png pni pnn pnp pnr ppg ppi ppn ppp ppr prg pri prn prp prr rgg rgi rgn rgp rgr rig rii rin rip rir rng rni rnn rnp rnr rpg rpi rpn rpp rpr rrg rri rrn rrp rrr