-er a-a a-b aaa aab aae aaf aag aao aar aau aav ab- aba abb abe abf abg abo abr abu abv aea aeb aee aef aeg aeo aer aeu aev af- afa afb afe aff afg afo afr afu afv ag- aga agb age agf agg ago agr agu agv aoa aob aoe aof aog aoo aor aou aov ar- ara arb are arf arg aro arr aru arv au- aua aub aue auf aug auo aur auv av- ava avb ave avf avg avo avr avu b-u baa bab bae baf bag bao bar bau bav bba bbb bbe bbf bbg bbo bbr bbu be- bea beb bee bef beg beo ber beu bev bfa bfb bfe bff bfg bfo bfr bfu bfv bga bgb bge bgf bgg bgo bgr bgu bgv boa bob boe bof bog boo bor bou bov bra brb bre brf brg bro brr bru brv bua bub bue buf bug buo bur buu bva bvb bve bvg bvo bvr bvu bvv eaa eab eae eaf eag eao ear eau eav eba ebb ebe ebf ebg ebo ebr ebu ebv eea eeb eee eef eeg eeo eer eev ef- efa efb efe eff efg efo efr ega egb ege egf egg ego egr egu eo- eoa eob eoe eof eog eoo eor eou era erb ere erf erg ero err eru erv eu- eua eub eue euf eug eur euv eva evb eve evf evg evo evr evv faa fab fae faf fag fao far fau fav fba fbb fbe fbf fbg fbo fbr fbu fea feb fee fef feg feo fer feu fev ffa ffe fff ffg ffo ffr ffu ffv fga fgb fge fgf fgg fgr fgv foa fob foe fof fog foo for fou fra frb fre frf frg fro frr fru fua fub fue fuf fug fuo fur fuu fuv fva fvg gaa gab gae gaf gag gao gar gau gav gba gbe gbf gbg gbo gbr gbu gbv ge- gea geb gee gef geg geo ger geu gev gfa gfb gfe gff gfo gfr gga ggb ggg ggo ggr ggu ggv goa gob goe gof gog goo gor gou gov gra grb gre grf grg gro grr gru grv gu- gua gub gue guf gug guo gur guu guv gva gvb gve gvf gvg gvo gvr gvu oaa oab oae oaf oag oao oar oau oav ob- oba obb obe obf obg obo obr obu obv oea oeb oee oef oeg oeo oer of- ofa ofb ofe off ofg ofo ofr ofu ofv oga oge ogf ogg ogo oo- ooa oob oof oog ooo oor oov or- ora orb ore orf org oro orr oru orv ou- oua oue ouf ouo our ov- ova ovb ove ovf ovo ovv ra- raa rab rae raf rag rao rar rau rav rba rbb rbe rbf rbg rbo rbr rbu re- rea reb ree ref reg reo rer reu rev rfa rfb rfe rff rfg rfo rfr rfu rfv rga rgb rge rgf rgg rgo rgr rgv roa rob roe rof rog roo ror rou rov rra rrb rrf rrg rrr rru rua rub rue ruf rug ruo rur ruu ruv rva rvb rve rvf rvg rvo rvr rvu rvv ua- uaa uab uae uaf uag uao uar uau uav uba ubb ube ubf ubg ubo ubr ubu ubv uea ueb uee uef ueg uer ufa ufe uff ufg ufo ufr ufu ufv uga ugb uge ugf ugg ugo ugr ugu uoa uob uoe uog uoo uor ur- ura urb ure urf urg uro urr uru uua uue uug uur uuu uva uvb uve uvf uvo uvu uvv v-a v-e vaa vab vae vag vao var vau vav vba vbg vbo vbr vbv vea veb vee vef veg veo ver veu vfa vfb vff vfg vfr vfu vfv vga vgf vgg vgo vgr vgu voa vob voe vof vog voo vor vou vov vra vrb vre vrf vrg vrr vru vue vug vur vuv vva vvb vvg vvo vvr vvv

a-be a-fu aaaa aaab aaae aaaf aaar aaav aaba aabb aaea aaev aafa aafb aaff aage aaoe aaoo aara aare aaro aaru aava abaa abab abae abaf abag abar abau abb- abba abbb abbe abbo abbr abee aber abff aboa abob abof aboo abor abou abov abra abro abua abue abuf abug abva aeaf aeer aega aer- aera aero aeva afaa afao afar afee afer affa affo afgf afoa afoe afog afoo afor afr- afra afre afro afru afua afue ag-o agag agao agar agau agav agba agbo agea agee ager agfa agga agge aggu agob agog agoo agou agra agre agro agua ague agur agva aoba aoeu aora aorb aouf arab arae araf arag arar arau arba arbe area aree aref areg areo areu arev arfa arfb arff arfu arga argb arge argo aroa arob aroe aroo aror arr- arra arre arrg arro arrr arru arua arub arue arug arva arve arvo auaa aube auer aufe auga auge aur- aura aure auro auug auve avab avao avar avea aveo aver aveu avgo avor avou avra avre avro avur avva avvo baaa baaf baar baba babb babe babo babr babu baer baff bafo baga bage bagg bago bar- bara barb bare barf barg baro barr baru bau- bauf baug baur bava bave bavu bbau bbbb bbeb bbga bbrg beaf beag bear beau beav beba bebb bebe bebo beeb beef beeg beer befa befe beff befo bega begg bego begu beo- beof beor bera bere berg bero berr beru beur bevo bfgf boab boag boar boba bobb bobe bobo bobu boea boee boef boeo boer bofa bofe boff bofu boga boge bogg bogo boob booe boof boog boor bor- bora bore borf borg boro borr boru boua boue bouf bour bova bove bovo brab brae braf brag brao brau brav brea breb bree bref breg breo brer brev brfu broa brob broe brog broo bror brou brrr brue brug bruv buar buba bubb bube bubo bubu buea buer bueu bufe buff bufo bufr