a-a aaa aaf aag aan aao aas aav af- afa aff afg afn afo afs afv ag- aga agf agg agn ago ags agv an- ana anf ang ann ano ans anv aoa aof aog aon aoo aos aov as- asa asf asg asn aso ass asv av- ava avf avg avn avo avs faa faf fag fan fao fas fav ffa fff ffg ffn ffo ffs ffv fga fgf fgg fgn fgs fgv fna fnf fng fnn fns fnv foa fof fog fon foo fos fsa fsf fsg fsn fso fss fsv fva fvg gaa gaf gag gan gao gas gav gfa gff gfo gfs gga ggg ggn ggo ggs ggv gna gnf gnn gno gns gnv goa gof gog gon goo gos gov gsa gsf gsg gsn gso gss gsv gva gvf gvg gvn gvo gvs naa naf nag nan nao nas nav nfa nff nfn nfo nfs nfv nga ngf ngg ngn ngo ngs nna nnf nng nnn nno nns nnv no- noa nof nog non noo nos nov nsa nsf nsg nsn nso nss nsv nva nvg nvn nvv oaa oaf oag oan oao oas oav of- ofa off ofg ofn ofo ofs ofv oga ogf ogg ogn ogo ogs on- ona onf ong onn ono ons oo- ooa oof oog oon ooo oos oov os- osa osf osg osn oso oss osv ov- ova ovf ovo ovs ovv saa saf sag san sao sas sav sfa sff sfg sfn sfo sfs sfv sga sgf sgg sgn sgo sgs sgv sna snf sng snn sno sns snv soa sof sog son soo sos sov ss- ssa ssf ssg ssn sso sss ssv sva svf svg svn svo svs svv v-a vaa vag van vao vas vav vfa vff vfg vfn vfs vfv vga vgf vgg vgn vgo vgs vn- vna vnf vng vno vns vnv voa vof vog von voo vos vov vsa vsf vsg vsn vso vss vsv vva vvg vvo vvs vvv