ggg ggn ggo ggr ggs gnn gno gnr gns gog gon goo gor gos grg grn gro grr grs gsg gsn gso gsr gss ngg ngn ngo ngs nng nnn nno nns no- nog non noo nor nos nrg nrn nro nrr nrs nsg nsn nso nsr nss ogg ogn ogo ogs on- ong onn ono onr ons oo- oog oon ooo oor oos or- org orn oro orr ors os- osg osn oso osr oss rgg rgn rgo rgr rgs rng rnn rno rnr rns rog ron roo ror ros rrg rrn rrr rrs rsg rsn rso rsr rss sgg sgn sgo sgr sgs sng snn sno snr sns sog son soo sor sos sr- srg srn sro srr srs ss- ssg ssn sso ssr sss