-er a-a a-b a-i a-t aaa aab aae aag aai aan aao aar aat aau aav ab- aba abb abe abg abi abn abo abr abt abu abv aea aeb aee aeg aei aen aeo aer aet aeu aev ag- aga agb age agg agi agn ago agr agt agu agv ai- aia aib aie aig aii ain aio air ait aiu aiv an- ana anb ane ang ani ann ano anr ant anu anv aoa aob aoe aog aoi aon aoo aor aot aou aov ar- ara arb are arg ari arn aro arr art aru arv at- ata atb ate atg ati atn ato atr att atu atv au- aua aub aue aug aui aun auo aur aut auv av- ava avb ave avg avi avn avo avr avt avu b-u baa bab bae bag bai ban bao bar bat bau bav bba bbb bbe bbg bbi bbn bbo bbr bbt bbu be- bea beb bee beg bei ben beo ber bet beu bev bga bgb bge bgg bgi bgn bgo bgr bgt bgu bgv bi- bia bib bie big bii bin bio bir bit biu biv bna bnb bne bng bni bnn bno bnr bnt bnu bnv boa bob boe bog boi bon boo bor bot bou bov bra brb bre brg bri brn bro brr brt bru brv bta btb bte btg bti btn bto btr btt btu btv bua bub bue bug bui bun buo bur but buu bva bvb bve bvg bvi bvn bvo bvr bvt bvu bvv eaa eab eae eag eai ean eao ear eat eau eav eba ebb ebe ebg ebi ebn ebo ebr ebt ebu ebv eea eeb eee eeg een eeo eer eet eev ega egb ege egg egi egn ego egr egt egu eia eib eie eig eii ein eio eir eit eiu eiv en- ena enb ene eng eni enn eno enr ent enu env eo- eoa eob eoe eog eoi eon eoo eor eot eou era erb ere erg eri ern ero err ert eru erv eta etb ete etg eti etn eto etr ett etu etv eu- eua eub eue eug eui eun eur eut euv eva evb eve evg evi evn evo evr evt evv gaa gab gae gag gai gan gao gar gat gau gav gba gbe gbg gbi gbn gbo gbr gbt gbu gbv ge- gea geb gee geg gei gen geo ger get geu gev gga ggb ggg ggi ggn ggo ggr ggt ggu ggv gia gib gie gig gii gin gio gir git giu giv gna gnb gne gni gnn gno gnr gnt gnu gnv goa gob goe gog goi gon goo gor got gou gov gra grb gre grg gri grn gro grr grt gru grv gta gtb gte gtg gti gtn gto gtr gtt gtu gtv gu- gua gub gue gug gui gun guo gur gut guu guv gva gvb gve gvg gvi gvn gvo gvr gvt gvu i-v ia- iaa iab iae iag iai ian iao iar iat iau iav iba ibb ibe ibg ibi ibn ibo ibr ibt ibu ibv ie- iea iee ieg iei ien ier iet iev iga igb ige igg igi ign igo igr igt igu iia iib iie iii iin iio iir iit iiu in- ina inb ine ing ini inn ino inr int inu inv io- ioa iob ioe iog ioi ion ioo ior iot iou iov ir- ira irb ire irg iri irn iro irr irt iru irv ita itb ite itg iti itn ito itt itu itv iu- iua iub iue iug iui iur iut iva ivb ive ivg ivi ivo ivr ivt ivu ivv n-i naa nab nae nag nai nan nao nar nat nau nav nba nbb nbe nbg nbi nbn nbo nbr nbt nbu nbv ne- nea neb nee neg nei nen neo ner net neu nev nga ngb nge ngg ngi ngn ngo ngt ngu nia nib nie nig nii nin nio nir nit niu niv nna nnb nne nng nni nnn nno nnt nnu nnv no- noa nob noe nog noi non noo nor not nou nov nra nrb nre nrg nri nrn nro nrr nrt nru nrv nta ntb nte ntg nti ntn nto ntr ntt ntu ntv nua nub nue nug nui nun nuo nur nut nuu nuv nva nvb nve nvg nvi nvn nvt nvu nvv o-i oaa oab oae oag oai oan oao oar oat oau oav ob- oba obb obe obg obi obn obo obr obt obu obv oea oeb oee oeg oei oen oeo oer oet oga oge ogg ogi ogn ogo ogt oia oib oie oii oin oio oir oit oiu oiv on- ona onb one ong oni onn ono onr ont onu oo- ooa oob oog ooi oon ooo oor oot oov or- ora orb ore org ori orn oro orr ort oru orv ot- ota otb ote otg oti otn oto otr ott otu otv ou- oua oue oui oun ouo our out ov- ova ovb ove ovi ovo ovv ra- raa rab rae rag rai ran rao rar rat rau rav rba rbb rbe rbg rbi rbn rbo rbr rbt rbu re- rea reb ree reg rei ren reo rer ret reu rev rga rgb rge rgg rgi rgn rgo rgr rgt rgv ria rib rie rig rii rin rio rir rit riv rna rnb rng rni rnn rno rnr rnt rnu rnv roa rob roe rog roi ron roo ror rot rou rov rra rrb rrg rri rrn rrr rrt rru rta rtb rte rtg rti rtn rto rtr rtt rtu rtv rua rub rue rug rui run ruo rur rut ruu ruv rva rvb rve rvg rvi rvn rvo rvr rvt rvu rvv taa tab tae tag tai tan tao tar tat tau tav tba tbb tbe tbg tbi tbn tbo tbr tbt tbu tbv te- tea teb tee teg tei ten teo ter tet teu tev tga tgb tge tgg tgi tgn tgo tgr tgt tgu tgv tia tib tie tig