a-a a-b a-i a-t aaa aab aad aag aai aan aar aas aat ab- aba abb abd abg abi abn abr abs abt ad- ada adb add adg adi adn adr ads adt ag- aga agb agd agg agi agn agr ags agt ai- aia aib aid aig aii ain air ais ait an- ana anb and ang ani ann anr ans ant ar- ara arb ard arg ari arn arr ars art as- asa asb asd asg asi asn asr ass ast at- ata atb atd atg ati atn atr ats att baa bab bad bag bai ban bar bas bat bba bbb bbd bbg bbi bbn bbr bbs bbt bda bdb bdd bdg bdi bdr bds bdt bga bgb bgd bgg bgi bgn bgr bgs bgt bi- bia bib bid big bii bin bir bis bit bna bnb bnd bng bni bnn bnr bns bnt bra brb brd brg bri brn brr brs brt bsa bsb bsd bsg bsi bsn bsr bss bst bta btb btd btg bti btn btr bts btt daa dab dad dag dai dan dar das dat dba dbb dbd dbg dbi dbn dbr dbs dbt dda ddb ddd ddg ddi ddn ddr dds ddt dga dgd dgg dgi dgn dgr dgs dgt di- dia dib did dig dii din dir dis dit dna dnb dnd dng dni dnn dnr dns dnt dra drb drd drg dri drn drr drs drt dsa dsb dsd dsg dsi dsn dsr dss dst dta dtb dtd dtg dti dtn dtr dts dtt g-d gaa gab gad gag gai gan gar gas gat gba gbd gbg gbi gbn gbr gbs gbt gda gdb gdd gdi gdn gdr gds gdt gga ggb ggd ggg ggi ggn ggr ggs ggt gia gib gid gig gii gin gir gis git gna gnb gnd gni gnn gnr gns gnt gra grb grd grg gri grn grr grs grt gsa gsb gsd gsg gsi gsn gsr gss gst gta gtb gtd gtg gti gtn gtr gts gtt i-d ia- iaa iab iad iag iai ian iar ias iat iba ibb ibd ibg ibi ibn ibr ibs ibt ida idb idd idg idi idn idr ids idt iga igb igd igg igi ign igr igs igt iia iib iid iii iin iir iis iit in- ina inb ind ing ini inn inr ins int ir- ira irb ird irg iri irn irr irs irt is- isa isb isd isg isi isn isr iss ist ita itb itd itg iti itn its itt n-i naa nab nad nag nai nan nar nas nat nba nbb nbd nbg nbi nbn nbr nbs nbt nda ndb ndd ndg ndi ndn ndr nds ndt nga ngb ngd ngg ngi ngn ngs ngt nia nib nid nig nii nin nir nis nit nna nnb nng nni nnn nns nnt nra nrb nrd nrg nri nrn nrr nrs nrt nsa nsb nsd nsg nsi nsn nsr nss nst nta ntb ntd ntg nti ntn ntr nts ntt ra- raa rab rad rag rai ran rar ras rat rba rbb rbd rbg rbi rbn rbr rbs rbt rda rdb rdd rdg rdi rdn rdr rds rdt rga rgb rgd rgg rgi rgn rgr rgs rgt ria rib rid rig rii rin rir ris rit rna rnb rnd rng rni rnn rnr rns rnt rra rrb rrd rrg rri rrn rrr rrs rrt rsa rsb rsd rsg rsi rsn rsr rss rst rta rtb rtd rtg rti rtn rtr rts rtt saa sab sad sag sai san sar sas sat sba sbb sbd sbg sbi sbn sbr sbs sbt sda sdb sdd sdg sdi sdn sdr sds sdt sga sgb sgd sgg sgi sgn sgr sgs sgt sia sib sid sig sii sin sir sis sit sna snb snd sng sni snn snr sns snt sr- sra srb srd srg sri srn srr srs srt ss- ssa ssb ssd ssg ssi ssn ssr sss sst sta stb std stg sti stn str sts stt taa tab tad tag tai tan tar tas tat tba tbb tbd tbg tbi tbn tbr tbs tbt tda tdb tdd tdg tdi tdn tdr tds tdt tga tgb tgg tgi tgn tgr tgs tgt tia tib tid tig tii tin tir tis tit tna tnb tnd tng tni tnn tnr tns tnt tra trb trd trg tri trn trr trs trt tsa tsb tsd tsg tsi tsn tsr tss tst tta ttb ttd ttg tti ttn ttr tts ttt