a-a aaa aad aaf aak aam aan aao aar aas ad- ada add adf adk adm adn ado adr ads af- afa afd aff afk afm afn afo afr afs aka akd akk akm akn ako akr aks ama amd amf amk amm amn amo amr ams an- ana and anf ank anm ann ano anr ans aoa aod aof aok aom aon aoo aor aos ar- ara ard arf ark arm arn aro arr ars as- asa asd asf ask asm asn aso asr ass daa dad daf dak dam dan dao dar das dda ddd ddf ddk ddm ddn ddo ddr dds dfa dfd dff dfk dfm dfn dfo dfr dfs dka dkk dkm dko dkr dks dma dmd dmf dmk dmm dmn dmo dmr dms dna dnd dnf dnk dnm dnn dno dnr dns doa dod dof dok dom don doo dor dos dra drd drk drm drn dro drr drs dsa dsd dsf dsk dsm dsn dso dsr dss faa fad faf fak fam fan fao far fas fda fdd fdf fdk fdm fdn fdo fdr fds ffa ffd fff ffk ffm ffn ffo ffr ffs fka fkf fkk fkm fma fmd fmf fmm fmn fmo fmr fms fna fnd fnf fnk fnm fnn fnr fns foa fof fok fom fon foo for fos fra frd frf frk frm frn fro frr frs fsa fsd fsf fsk fsm fsn fso fsr fss ka- kaa kad kaf kak kam kan kao kar kas kda kdf kdk kdm kdo kdr kds kfa kfd kff kfm kfo kfs kkk kkm kkn kkr kks kma kmd kmf kmk kmm kmo kms kn- kna knd knf knk knm knn kno knr koa kod kof kok kom kon koo kor kos kra krd krf krk krn kro krr krs ksa ksd ksf ksk ksm ksn kso ksr kss m-f m-o m-r maa mad maf mak mam man mao mar mas mda mdd mdf mdk mdm mdn mdo mdr mds mfa mfd mff mfm mfn mfo mfr mfs mka mkd mkk mkm mkn mko mkr mks mma mmd mmf mmk mmm mmn mmo mmr mms mna mnf mnk mnm mnn mno mnr mns moa mod mof mok mom mon moo mor mos mra mrd mrf mrk mrm mrn mro mrr mrs msa msd msf msk msm msn mso msr mss naa nad naf nak nam nan nao nar nas nda ndd ndf ndk ndm ndn ndo ndr nds nfa nfd nff nfk nfn nfo nfr nfs nka nkf nkk nkm nkn nko nkr nks nma nmd nmk nmm nmn nmo nmr nms nna nnf nnk nnm nnn nno nns no- noa nod nof nok nom non noo nor nos nra nrd nrf nrk nrm nrn nro nrr nrs nsa nsd nsf nsk nsm nsn nso nsr nss oaa oad oaf oak oam oan oao oar oas oda odd odf odm odn odo odr ods of- ofa ofd off ofm ofn ofo ofr ofs oka okd okk oko okr oks om- oma omd omf omm omn omo omr oms on- ona ond onf onk onn ono onr ons oo- ooa ood oof ook oom oon ooo oor oos or- ora ord orf ork orm orn oro orr ors os- osa osd osf osk osm osn oso osr oss ra- raa rad raf rak ram ran rao rar ras rda rdd rdf rdm rdn rdo rdr rds rfa rfd rff rfk rfm rfn rfo rfr rfs rkf rkk rkm rko rks rma rmd rmf rmm rmn rmo rmr rms rna rnd rnm rnn rno rnr rns roa rod rof rok rom ron roo ror ros rra rrd rrf rrk rrm rrn rrr rrs rsa rsd rsf rsk rsm rsn rso rsr rss saa sad saf sak sam san sao sar sas sda sdd sdf sdk sdm sdn sdo sdr sds sfa sfd sff sfk sfm sfn sfo sfr sfs sk- ska skd skf skk skm sko skr sks sma smd smf smk smm smn smo smr sms sna snd snf snk snm snn sno snr sns soa sod sof sok som son soo sor sos sr- sra srd srf srk srm srn sro srr srs ss- ssa ssd ssf ssk ssm ssn sso ssr sss