-er a-a a-b a-i a-t aaa aab aae aag aai aar aat aav ab- aba abb abe abg abi abr abt abv aea aeb aee aeg aei aer aet aev ag- aga agb age agg agi agr agt agv ai- aia aib aie aig aii air ait aiv ar- ara arb are arg ari arr art arv at- ata atb ate atg ati atr att atv av- ava avb ave avg avi avr avt baa bab bae bag bai bar bat bav bba bbb bbe bbg bbi bbr bbt be- bea beb bee beg bei ber bet bev bga bgb bge bgg bgi bgr bgt bgv bi- bia bib bie big bii bir bit biv bra brb bre brg bri brr brt brv bta btb bte btg bti btr btt btv bva bvb bve bvg bvi bvr bvt bvv eaa eab eae eag eai ear eat eav eba ebb ebe ebg ebi ebr ebt ebv eea eeb eee eeg eer eet eev ega egb ege egg egi egr egt eia eib eie eig eii eir eit eiv era erb ere erg eri err ert erv eta etb ete etg eti etr ett etv eva evb eve evg evi evr evt evv gaa gab gae gag gai gar gat gav gba gbe gbg gbi gbr gbt gbv ge- gea geb gee geg gei ger get gev gga ggb ggg ggi ggr ggt ggv gia gib gie gig gii gir git giv gra grb gre grg gri grr grt grv gta gtb gte gtg gti gtr gtt gtv gva gvb gve gvg gvi gvr gvt i-v ia- iaa iab iae iag iai iar iat iav iba ibb ibe ibg ibi ibr ibt ibv ie- iea iee ieg iei ier iet iev iga igb ige igg igi igr igt iia iib iie iii iir iit ir- ira irb ire irg iri irr irt irv ita itb ite itg iti itt itv iva ivb ive ivg ivi ivr ivt ivv ra- raa rab rae rag rai rar rat rav rba rbb rbe rbg rbi rbr rbt re- rea reb ree reg rei rer ret rev rga rgb rge rgg rgi rgr rgt rgv ria rib rie rig rii rir rit riv rra rrb rrg rri rrr rrt rta rtb rte rtg rti rtr rtt rtv rva rvb rve rvg rvi rvr rvt rvv taa tab tae tag tai tar tat tav tba tbb tbe tbg tbi tbr tbt tbv te- tea teb tee teg tei ter tet tev tga tgb tge tgg tgi tgr tgt tgv tia tib tie tig tii tir tit tiv tra trb tre trg tri trr trt trv tta ttb tte ttg tti ttr ttt ttv tva tvb tve tvg tvi tvr tvt v-a v-e vaa vab vae vag vai var vat vav vba vbg vbi vbr vbv vea veb vee veg vei ver vet vga vgg vgr vgt vi- via vib vie vig vii vir vit viv vra vrb vre vrg vri vrr vrt vta vtb vte vtg vti vtr vtt vtv vva vvb vvg vvi vvr vvt vvv

a-be a-ii a-iv aaaa aaab aaae aaai aaar aaav aaba aabb aabi aabt aaea aaev aage aaib aaii aara aare aari aart aata aatt aava abaa abab abae abag abai abar abat abb- abba abbb abbe abbi abbr abbt abee aber abet abia abib abie abig abir abit abra abri abta abva aebi aeer aega aeit aer- aera aeri aeta aetr aett aeva agag agai agar agat agav agba agea agee agei ager aget agga agge aggi agia agib agie agig agii agir agit agra agre agri agta agte agtr agva aiai aiba aiea aiee aiet aiga aiia aiib aiir aira aire airi airt aita aite aiti aitr aitt aiva arab arae arag arai arar arat arba arbe arbi area aree areg arei aret arev arga argb arge argi aria arib arie arig arii arit arr- arra arre arrg arri arrr arrt arta arte arti artr artv arva arve arvi at-t ataa atab atae atai atar atat atea atee atei ater atia atie atit atra atre atri atta atte atti attr atvi avab avar avat avea aver avgi avia avie avit aviv avra avre avri avva ba-i baaa baar baat baba babb babe babi babr baer baga bage bagg bagi bagt baia baib baie baig bair bait bar- bara barb bare barg bari barr bart bata bate bati batt bava bave bavi bbbb bbeb bbet bbga bbrg beag bear beat beav beba bebb bebe bebi beeb beeg beer beet bega begg begi beia beir beit bera bere berg beri berr bert beta bete beti bett betv bgia biar biat biba bibb bibe bibi bieb bier biet biga bigb bige bigg bigt bira birb bire birg biri birr birt bita bite bitt bive bivi brab brae brag brai brat brav brea breb bree breg brei brer bret brev bria brie brig brit brrr brvi btaa btie btrt bttb btvi eaba eaga eage eara earb eare eart eata eate eati eave ebba ebbr eber ebit eeea eeee eega eera eerg eeta eete eeva egaa egae egar egat egba egbe egea egee eger eggb egge eggi egir egra egre egri egta egte eiei eier eige eigg eira eire eita eitb eiti eitr erat erba erbb erbe ereb erei erer eret erev erg- erga ergg ergi eria erie erit erra erre erta erve ervi etag etai etat etbr etee eter etra etre etta ette etti evae evar evat evea ever evet evga evia evie evir evra evre gaar gaba gabb gabe gabi gabr gabt gaea gaer gaga gage gagg gagi gaia gaie gaig gair gait gara garb gare garg gari garr gart garv gata gate gati gatr gatt gatv gava gave gavi gbag geab geai gear geat geba gebe gebi geer geet gege gegg geia geie geig geir geit gera gerb gere geri gert geta getb gete getg geti gett geva geve ggbt gggg giaa giai giat giba gibb gibe gier giet giga gige gigg gigi gira gire girg giri girr girt gita gite