a-a a-b a-i aaa aab aad aag aai aak aan aar ab- aba abb abd abg abi abk abn abr ad- ada adb add adg adi adk adn adr ag- aga agb agd agg agi agk agn agr ai- aia aib aid aig aii aik ain air aka akb akd akg aki akk akn akr an- ana anb and ang ani ank ann anr ar- ara arb ard arg ari ark arn arr baa bab bad bag bai bak ban bar bba bbb bbd bbg bbi bbk bbn bbr bda bdb bdd bdg bdi bdk bdr bga bgb bgd bgg bgi bgk bgn bgr bi- bia bib bid big bii bik bin bir bka bkb bkg bkk bkn bkr bna bnb bnd bng bni bnk bnn bnr bra brb brd brg bri brk brn brr daa dab dad dag dai dak dan dar dba dbb dbd dbg dbi dbk dbn dbr dda ddb ddd ddg ddi ddk ddn ddr dga dgd dgg dgi dgk dgn dgr di- dia dib did dig dii dik din dir dka dkb dkg dki dkk dkr dna dnb dnd dng dni dnk dnn dnr dra drb drd drg dri drk drn drr g-d gaa gab gad gag gai gak gan gar gba gbd gbg gbi gbk gbn gbr gda gdb gdd gdi gdk gdn gdr gga ggb ggd ggg ggi ggn ggr gia gib gid gig gii gik gin gir gka gkb gkd gkn gna gnb gnd gni gnn gnr gra grb grd grg gri grk grn grr i-d ia- iaa iab iad iag iai ian iar iba ibb ibd ibg ibi ibk ibn ibr ida idb idd idg idi idk idn idr iga igb igd igg igi igk ign igr iia iib iid iii iin iir ika ikb iki ikk ikr in- ina inb ind ing ini ink inn inr ir- ira irb ird irg iri irk irn irr ka- kaa kab kad kag kai kak kan kar kba kbb kbd kbi kbk kbn kbr kda kdb kdg kdk kdr kga kgb kgd kgi kia kib kid kig kii kik kin kir kkb kki kkk kkn kkr kn- kna knd kng kni knk knn knr kra krd krg kri krk krn krr n-i naa nab nad nag nai nak nan nar nba nbb nbd nbg nbi nbk nbn nbr nda ndb ndd ndg ndi ndk ndn ndr nga ngb ngd ngg ngi ngk ngn nia nib nid nig nii nik nin nir nka nki nkk nkn nkr nna nnb nng nni nnk nnn nra nrb nrd nrg nri nrk nrn nrr ra- raa rab rad rag rai rak ran rar rba rbb rbd rbg rbi rbk rbn rbr rda rdb rdd rdg rdi rdn rdr rga rgb rgd rgg rgi rgk rgn rgr ria rib rid rig rii rik rin rir rkb rkg rkk rna rnb rnd rng rni rnn rnr rra rrb rrd rrg rri rrk rrn rrr