a-a a-b a-i aaa aab aag aai aak aam aan aao aas ab- aba abb abg abi abk abm abn abo abs ag- aga agb agg agi agk agm agn ago ags ai- aia aib aig aii aik aim ain aio ais aka akb akg aki akk akm akn ako aks ama amb amg ami amk amm amn amo ams an- ana anb ang ani ank anm ann ano ans aoa aob aog aoi aok aom aon aoo aos as- asa asb asg asi ask asm asn aso ass baa bab bag bai bak bam ban bao bas bba bbb bbg bbi bbk bbm bbn bbo bbs bga bgb bgg bgi bgk bgm bgn bgo bgs bi- bia bib big bii bik bim bin bio bis bka bkb bkg bkk bkm bkn bko bks bma bmb bmg bmi bmk bmm bmn bmo bms bna bnb bng bni bnk bnn bno bns boa bob bog boi bok bom bon boo bos bsa bsb bsg bsi bsk bsm bsn bso bss gaa gab gag gai gak gam gan gao gas gba gbg gbi gbk gbm gbn gbo gbs gga ggb ggg ggi ggm ggn ggo ggs gia gib gig gii gik gim gin gio gis gka gkb gkm gkn gko gks gma gmb gmg gmi gmm gmn gmo gms gna gnb gni gnm gnn gno gns goa gob gog goi gok gom gon goo gos gsa gsb gsg gsi gsk gsm gsn gso gss ia- iaa iab iag iai iam ian iao ias iba ibb ibg ibi ibk ibm ibn ibo ibs iga igb igg igi igk igm ign igo igs iia iib iii iim iin iio iis ika ikb iki ikk iko iks im- ima imb img imi imm imn imo ims in- ina inb ing ini ink inm inn ino ins io- ioa iob iog ioi iom ion ioo ios is- isa isb isg isi isk ism isn iso iss ka- kaa kab kag kai kak kam kan kao kas kba kbb kbi kbk kbm kbn kbo kbs kga kgb kgi kgm kgo kgs kia kib kig kii kik kim kin kio kis kkb kki kkk kkm kkn kks kma kmb kmg kmi kmk kmm kmo kms kn- kna kng kni knk knm knn kno koa kob kog koi kok kom kon koo kos ksa ksb ksg ksi ksk ksm ksn kso kss m-o maa mab mag mai mak mam man mao mas mba mbb mbg mbi mbk mbm mbo mbs mga mgb mgi mgk mgm mgn mgo mgs mi- mia mib mig mii mik mim min mio mis mka mkb mkg mkk mkm mkn mko mks mma mmb mmg mmi mmk mmm mmn mmo mms mna mnb mng mni mnk mnm mnn mno mns moa mob mog moi mok mom mon moo mos msa msb msg msi msk msm msn mso mss n-i naa nab nag nai nak nam nan nao nas nba nbb nbg nbi nbk nbm nbn nbo nbs nga ngb ngg ngi ngk ngm ngn ngo ngs nia nib nig nii nik nim nin nio nis nka nki nkk nkm nkn nko nks nma nmb nmg nmi nmk nmm nmn nmo nms nna nnb nng nni nnk nnm nnn nno nns no- noa nob nog noi nok nom non noo nos nsa nsb nsg nsi nsk nsm nsn nso nss o-i oaa oab oag oai oak oam oan oao oas ob- oba obb obg obi obk obm obn obo obs oga ogg ogi ogn ogo ogs oia oib oii oik oim oin oio ois oka okb okg oki okk oko oks om- oma omb omg omi omm omn omo oms on- ona onb ong oni onk onn ono ons oo- ooa oob oog ooi ook oom oon ooo oos os- osa osb osg osi osk osm osn oso oss saa sab sag sai sak sam san sao sas sba sbb sbg sbi sbk sbm sbn sbo sbs sga sgb sgg sgi sgk sgm sgn sgo sgs sia sib sig sii sik sim sin sio sis sk- ska skb skg ski skk skm sko sks sma smb smg smi smk smm smn smo sms sna snb sng sni snk snm snn sno sns soa sob sog soi sok som son soo sos ss- ssa ssb ssg ssi ssk ssm ssn sso sss