a-a a-b a-i aaa aab aag aai aak aam aan aao aar ab- aba abb abg abi abk abm abn abo abr ag- aga agb agg agi agk agm agn ago agr ai- aia aib aig aii aik aim ain aio air aka akb akg aki akk akm akn ako akr ama amb amg ami amk amm amn amo amr an- ana anb ang ani ank anm ann ano anr aoa aob aog aoi aok aom aon aoo aor ar- ara arb arg ari ark arm arn aro arr baa bab bag bai bak bam ban bao bar bba bbb bbg bbi bbk bbm bbn bbo bbr bga bgb bgg bgi bgk bgm bgn bgo bgr bi- bia bib big bii bik bim bin bio bir bka bkb bkg bkk bkm bkn bko bkr bma bmb bmg bmi bmk bmm bmn bmo bmr bna bnb bng bni bnk bnn bno bnr boa bob bog boi bok bom bon boo bor bra brb brg bri brk brm brn bro brr gaa gab gag gai gak gam gan gao gar gba gbg gbi gbk gbm gbn gbo gbr gga ggb ggg ggi ggm ggn ggo ggr gia gib gig gii gik gim gin gio gir gka gkb gkm gkn gko gma gmb gmg gmi gmm gmn gmo gmr gna gnb gni gnm gnn gno gnr goa gob gog goi gok gom gon goo gor gra grb grg gri grk grm grn gro grr ia- iaa iab iag iai iam ian iao iar iba ibb ibg ibi ibk ibm ibn ibo ibr iga igb igg igi igk igm ign igo igr iia iib iii iim iin iio iir ika ikb iki ikk iko ikr im- ima imb img imi imm imn imo in- ina inb ing ini ink inm inn ino inr io- ioa iob iog ioi iom ion ioo ior ir- ira irb irg iri irk irm irn iro irr ka- kaa kab kag kai kak kam kan kao kar kba kbb kbi kbk kbm kbn kbo kbr kga kgb kgi kgm kgo kia kib kig kii kik kim kin kio kir kkb kki kkk kkm kkn kkr kma kmb kmg kmi kmk kmm kmo kn- kna kng kni knk knm knn kno knr koa kob kog koi kok kom kon koo kor kra krg kri krk krn kro krr m-o m-r maa mab mag mai mak mam man mao mar mba mbb mbg mbi mbk mbm mbo mbr mga mgb mgi mgk mgm mgn mgo mgr mi- mia mib mig mii mik mim min mio mir mka mkb mkg mkk mkm mkn mko mkr mma mmb mmg mmi mmk mmm mmn mmo mmr mna mnb mng mni mnk mnm mnn mno mnr moa mob mog moi mok mom mon moo mor mra mrb mrg mri mrk mrm mrn mro mrr n-i naa nab nag nai nak nam nan nao nar nba nbb nbg nbi nbk nbm nbn nbo nbr nga ngb ngg ngi ngk ngm ngn ngo nia nib nig nii nik nim nin nio nir nka nki nkk nkm nkn nko nkr nma nmb nmg nmi nmk nmm nmn nmo nmr nna nnb nng nni nnk nnm nnn nno no- noa nob nog noi nok nom non noo nor nra nrb nrg nri nrk nrm nrn nro nrr o-i oaa oab oag oai oak oam oan oao oar ob- oba obb obg obi obk obm obn obo obr oga ogg ogi ogn ogo oia oib oii oik oim oin oio oir oka okb okg oki okk oko okr om- oma omb omg omi omm omn omo omr on- ona onb ong oni onk onn ono onr oo- ooa oob oog ooi ook oom oon ooo oor or- ora orb org ori ork orm orn oro orr ra- raa rab rag rai rak ram ran rao rar rba rbb rbg rbi rbk rbm rbn rbo rbr rga rgb rgg rgi rgk rgn rgo rgr ria rib rig rii rik rim rin rio rir rkb rkg rkk rkm rko rma rmb rmg rmi rmm rmn rmo rmr rna rnb rng rni rnm rnn rno rnr roa rob rog roi rok rom ron roo ror rra rrb rrg rri rrk rrm rrn rrr