g-p ggg ggn ggo ggp ggr ggs gnn gno gnp gnr gns gog gon goo gop gor gos gpg gpn gpo gpp gpr gps grg grn gro grp grr grs gsg gsn gso gsp gsr gss ngg ngn ngo ngp ngs nng nnn nno nnp nns no- nog non noo nop nor nos npg npn npo npp npr nps nrg nrn nro nrp nrr nrs nsg nsn nso nsp nsr nss ogg ogn ogo ogp ogs on- ong onn ono onp onr ons oo- oog oon ooo oop oor oos op- opg opn opo opp opr ops or- org orn oro orp orr ors os- osg osn oso osp osr oss p-p pgg pgn pgo pgp pgr pgs pn- png pnn pno pnp pnr pns pog pon poo pop por pos ppg ppn ppo ppp ppr pps prg prn pro prp prr prs ps- psg psn pso psp psr pss rgg rgn rgo rgp rgr rgs rng rnn rno rnp rnr rns rog ron roo rop ror ros rpg rpn rpo rpp rpr rps rrg rrn rrp rrr rrs rsg rsn rso rsp rsr rss sgg sgn sgo sgp sgr sgs sng snn sno snp snr sns sog son soo sop sor sos spg spn spo spp spr sps sr- srg srn sro srp srr srs ss- ssg ssn sso ssp ssr sss