a-a a-t aaa aaf aag aam aao aar aas aat af- afa aff afg afm afo afr afs aft ag- aga agf agg agm ago agr ags agt ama amf amg amm amo amr ams amt aoa aof aog aom aoo aor aos aot ar- ara arf arg arm aro arr ars art as- asa asf asg asm aso asr ass ast at- ata atf atg atm ato atr ats att faa faf fag fam fao far fas fat ffa fff ffg ffm ffo ffr ffs fft fga fgf fgg fgm fgr fgs fgt fma fmf fmg fmm fmo fmr fms fmt foa fof fog fom foo for fos fot fra frf frg frm fro frr frs frt fsa fsf fsg fsm fso fsr fss fst fta ftf ftg ftm fto ftr fts ftt gaa gaf gag gam gao gar gas gat gfa gff gfm gfo gfr gfs gft gga ggg ggm ggo ggr ggs ggt gma gmf gmg gmm gmo gmr gms gmt goa gof gog gom goo gor gos got gra grf grg grm gro grr grs grt gsa gsf gsg gsm gso gsr gss gst gta gtf gtg gtm gto gtr gts gtt m-f m-o m-r maa maf mag mam mao mar mas mat mfa mff mfg mfm mfo mfr mfs mft mga mgf mgm mgo mgr mgs mgt mma mmf mmg mmm mmo mmr mms mmt moa mof mog mom moo mor mos mot mra mrf mrg mrm mro mrr mrs mrt msa msf msg msm mso msr mss mst mta mtf mtg mtm mto mtr mts mtt oaa oaf oag oam oao oar oas oat of- ofa off ofg ofm ofo ofr ofs oft oga ogf ogg ogo ogs ogt om- oma omf omg omm omo omr oms omt oo- ooa oof oog oom ooo oor oos oot or- ora orf org orm oro orr ors ort os- osa osf osg osm oso osr oss ost ot- ota otf otg otm oto otr ots ott ra- raa raf rag ram rao rar ras rat rfa rff rfg rfm rfo rfr rfs rft rga rgf rgg rgo rgr rgs rgt rma rmf rmg rmm rmo rmr rms rmt roa rof rog rom roo ror ros rot rra rrf rrg rrm rrr rrs rrt rsa rsf rsg rsm rso rsr rss rst rta rtf rtg rtm rto rtr rts rtt saa saf sag sam sao sar sas sat sfa sff sfg sfm sfo sfr sfs sft sga sgf sgg sgm sgo sgr sgs sgt sma smf smg smm smo smr sms smt soa sof sog som soo sor sos sot sr- sra srf srg srm sro srr srs srt ss- ssa ssf ssg ssm sso ssr sss sst sta stf stg stm sto str sts stt taa taf tag tam tao tar tas tat tfa tff tfg tfm tfo tfr tfs tft tga tgf tgg tgm tgo tgr tgs tgt tma tmf tmg tmm tmo tmr tms tmt to- toa tof tog tom too tor tos tot tra trf trg trm tro trr trs trt tsa tsf tsg tsm tso tsr tss tst tta ttf ttg ttm tto ttr tts ttt