-er a-a a-b a-i a-t aaa aab aae aag aai aar aas aat aav ab- aba abb abe abg abi abr abs abt abv aea aeb aee aeg aei aer aes aet aev ag- aga agb age agg agi agr ags agt agv ai- aia aib aie aig aii air ais ait aiv ar- ara arb are arg ari arr ars art arv as- asa asb ase asg asi asr ass ast asv at- ata atb ate atg ati atr ats att atv av- ava avb ave avg avi avr avs avt baa bab bae bag bai bar bas bat bav bba bbb bbe bbg bbi bbr bbs bbt be- bea beb bee beg bei ber bes bet bev bga bgb bge bgg bgi bgr bgs bgt bgv bi- bia bib bie big bii bir bis bit biv bra brb bre brg bri brr brs brt brv bsa bsb bse bsg bsi bsr bss bst bsv bta btb bte btg bti btr bts btt btv bva bvb bve bvg bvi bvr bvs bvt bvv eaa eab eae eag eai ear eas eat eav eba ebb ebe ebg ebi ebr ebs ebt ebv eea eeb eee eeg eer ees eet eev ega egb ege egg egi egr egs egt eia eib eie eig eii eir eis eit eiv era erb ere erg eri err ers ert erv es- esa esb ese esg esi esr ess est esv eta etb ete etg eti etr ets ett etv eva evb eve evg evi evr evs evt evv gaa gab gae gag gai gar gas gat gav gba gbe gbg gbi gbr gbs gbt gbv ge- gea geb gee geg gei ger ges get gev gga ggb ggg ggi ggr ggs ggt ggv gia gib gie gig gii gir gis git giv gra grb gre grg gri grr grs grt grv gsa gsb gse gsg gsi gsr gss gst gsv gta gtb gte gtg gti gtr gts gtt gtv gva gvb gve gvg gvi gvr gvs gvt i-v ia- iaa iab iae iag iai iar ias iat iav iba ibb ibe ibg ibi ibr ibs ibt ibv ie- iea iee ieg iei ier ies iet iev iga igb ige igg igi igr igs igt iia iib iie iii iir iis iit ir- ira irb ire irg iri irr irs irt irv is- isa isb ise isg isi isr iss ist isv ita itb ite itg iti its itt itv iva ivb ive ivg ivi ivr ivs ivt ivv ra- raa rab rae rag rai rar ras rat rav rba rbb rbe rbg rbi rbr rbs rbt re- rea reb ree reg rei rer res ret rev rga rgb rge rgg rgi rgr rgs rgt rgv ria rib rie rig rii rir ris rit riv rra rrb rrg rri rrr rrs rrt rsa rsb rse rsg rsi rsr rss rst rsv rta rtb rte rtg rti rtr rts rtt rtv rva rvb rve rvg rvi rvr rvs rvt rvv saa sab sae sag sai sar sas sat sav sba sbb sbe sbg sbi sbr sbs sbt sbv se- sea seb see seg sei ser ses set sev sga sgb sge sgg sgi sgr sgs sgt sgv sia sib sie sig sii sir sis sit siv sr- sra srb sre srg sri srr srs srt srv ss- ssa ssb sse ssg ssi ssr sss sst ssv sta stb ste stg sti str sts stt stv sva svb sve svg svi svr svs svt svv taa tab tae tag tai tar tas tat tav tba tbb tbe tbg tbi tbr tbs tbt tbv te- tea teb tee teg tei ter tes tet tev tga tgb tge tgg tgi tgr tgs tgt tgv tia tib tie tig tii tir tis tit tiv tra trb tre trg tri trr trs trt trv tsa tsb tse tsg tsi tsr tss tst tsv tta ttb tte ttg tti ttr tts ttt ttv tva tvb tve tvg tvi tvr tvs tvt v-a v-e vaa vab vae vag vai var vas vat vav vba vbg vbi vbr vbs vbv vea veb vee veg vei ver ves vet vga vgg vgr vgs vgt vi- via vib vie vig vii vir vis vit viv vra vrb vre vrg vri vrr vrs vrt vsa vsb vse vsg vsi vsr vss vst vsv vta vtb vte vtg vti vtr vts vtt vtv vva vvb vvg vvi vvr vvs vvt vvv

-ase a-be a-ii a-iv aaaa aaab aaae aaai aaar aaas aaav aaba aabb aabi aabt aaea aaes aaev aage aaib aaii aais aara aare aari aars aart aasa aase aasi aass aast aata aatt aava abaa abab abae abag abai abar abas abat abb- abba abbb abbe abbi abbr abbs abbt abee aber abes abet abia abib abie abig abir abis abit abra abri abrs abs- absa abse absi abss abta abts abva aeas aebi aebs aeer aega aeit aer- aera aeri aers aess aest aeta aetr aett aeva agag agai agar agas agat agav agba agea agee agei ager ages aget agga agge aggi agia agib agie agig agii agir agis agit agra agre agri agsa agsg agst agta agte agtr agts agva aiai aias aiba aiea aiee aiet aiga aiia aiib aiir aira aire airi airs airt aisa aisb aise aisg aisi aisr aist aita aite aiti aitr aits aitt aiva arab arae arag arai arar aras arat arba arbe arbi arbs area aree areg arei ares aret arev arga argb arge argi args aria arib arie arig arii aris arit arr- arra arre arrg arri arrr arrs arrt ars- arsa arse arsi arst arta arte arti artr arts artv arva arve arvi asaa asab asae asag asai asar asas asat asba asea asee aser ases aset asge asgt asia asie asii asir asis asit asra asrg asrs assa asse assi assr asss asst asta astb aste asti astr asts astv asva asvs at-t ataa atab atae atai atar atas atat atbs atea atee atei ater ates atia atie atis atit atra atre atri atsb