-er -ic -th a-a a-b a-c a-i a-t aaa aab aac aae aaf aag aah aai aao aar aat aau ab- aba abb abc abe abf abg abh abi abo abr abt abu ac- aca acb acc ace acf acg ach aci aco acr act acu aea aeb aec aee aef aeg aeh aei aeo aer aet aeu af- afa afb afc afe aff afg afh afi afo afr aft afu ag- aga agb agc age agf agg agh agi ago agr agt agu aha ahb ahc ahe ahf ahg ahh ahi aho ahr aht ahu ai- aia aib aic aie aif aig aih aii aio air ait aiu aoa aob aoc aoe aof aog aoh aoi aoo aor aot aou ar- ara arb arc are arf arg arh ari aro arr art aru at- ata atb atc ate atf atg ath ati ato atr att atu au- aua aub auc aue auf aug auh aui auo aur aut b-u baa bab bac bae baf bag bah bai bao bar bat bau bba bbb bbc bbe bbf bbg bbh bbi bbo bbr bbt bbu bca bcb bcc bce bcf bcg bch bci bco bcr bct bcu be- bea beb bec bee bef beg beh bei beo ber bet beu bfa bfb bfc bfe bff bfg bfh bfi bfo bfr bft bfu bga bgb bgc bge bgf bgg bgh bgi bgo bgr bgt bgu bha bhb bhc bhe bhf bhg bhh bhi bho bhr bht bhu bi- bia bib bic bie bif big bih bii bio bir bit biu boa bob boc boe bof bog boh boi boo bor bot bou bra brb bre brf brg brh bri bro brr brt bru bta btb btc bte btf btg bth bti bto btr btt btu bua bub buc bue buf bug buh bui buo bur but buu c-- caa cab cac cae caf cag cah cai cao car cat cau cba cbb cbc cbe cbf cbg cbh cbi cbo cbr cbt cbu cca ccb ccc cce ccf ccg cch cci cco ccr cct ccu ce- cea ceb cec cee cef ceg ceh cei ceo cer cet ceu cfa cfb cfc cfe cff cfg cfh cfi cfo cfr cft cfu cga cgb cgc cge cgg cgh cgi cgo cgr cgt cgu ch- cha chb chc che chf chg chh chi cho chr cht chu ci- cia cib cic cie cif cig cih cii cio cir cit ciu co- coa cob coc coe cof cog coh coi coo cor cot cou cra crb crc cre crf crg crh cri cro crr crt cru cta ctb ctc cte ctf ctg cth cti cto ctr ctt ctu cua cub cuc cue cuf cug cuh cui cuo cur cut cuu eaa eab eac eae eaf eag eah eai eao ear eat eau eba ebb ebc ebe ebf ebg ebh ebi ebo ebr ebt ebu ec- eca ecb ecc ece ecf ecg ech eci eco ecr ect ecu eea eeb eec eee eef eeg eeo eer eet ef- efa efb efc efe eff efg efh efi efo efr eft ega egb egc ege egf egg egh egi ego egr egt egu eha ehb ehc ehe ehf ehg ehh ehi eho ehr eht ehu eia eib eic eie eif eig eii eio eir eit eiu eo- eoa eob eoc eoe eof eog eoh eoi eoo eor eot eou era erb erc ere erf erg erh eri ero err ert eru eta etb etc ete etf etg eth eti eto etr ett etu eu- eua eub euc eue euf eug eui eur eut faa fab fac fae faf fag fah fai fao far fat fau fba fbb fbc fbe fbf fbg fbh fbi fbo fbr fbt fbu fca fcb fcc fce fcf fcg fci fco fcr fct fcu fea feb fec fee fef feg feh fei feo fer fet feu ffa ffc ffe fff ffg ffh ffi ffo ffr fft ffu fga fgb fgc fge fgf fgg fgh fgi fgr fgt fha fhb fhc fhe fhf fhg fhh fhi fho fhr fia fib fic fie fif fig fih fii fir fit fiu foa fob foc foe fof fog foh foi foo for fot fou fra frb frc fre frf frg frh fri fro frr frt fru fta ftb ftc fte ftf ftg fth fti fto ftr ftt ftu fua fub fue fuf fug fui fuo fur fut fuu gaa gab gac gae gaf gag gah gai gao gar gat gau gba gbc gbe gbf gbg gbh gbi gbo gbr gbt gbu gca gcb gcc gce gcf gcg gch gci gco gcr gct gcu ge- gea geb gec gee gef geg geh gei geo ger get geu gfa gfb gfc gfe gff gfh gfi gfo gfr gft gga ggb ggc ggg ggh ggi ggo ggr ggt ggu gha ghb ghc ghe ghg ghh ghi gho ghr ght gia gib gic gie gif gig gih gii gio gir git giu goa gob goc goe gof gog goh goi goo gor got gou gra grb grc gre grf grg grh gri gro grr grt gru gta gtb gtc gte gtf gtg gth gti gto gtr gtt gtu gu- gua gub guc gue guf gug gui guo gur gut guu h-i haa hab hac hae haf hag hah hai hao har hat hau hba hbb hbc hbe hbf hbg hbh hbi hbo hbr hbt hbu hca hcb hcc hce hcf hcg hch hci hco hcr hct he- hea heb hec hee hef heg heh hei heo her het heu hfa hfb hfc hfe hff hfg hfh hfi hfo hfr hft hfu hga hgb hgc hge hgf hgg hgh hgi hgo hgr hgt hgu hha hhb hhc hhe hhf hhg hhh hhi hho hhr hht hhu hia hib hic hie hif hig hih hii hio hir hit hiu hoa hob hoc hoe hof hog hoh hoi hoo hor hot hou hr- hra hrb hrc hre hrf hrg hrh hri hro hrr hrt hru hta htb htc hte htf htg hth hti hto htr htt hua