-er a-a a-b aaa aab aae aag aao aar aau aav ab- aba abb abe abg abo abr abu abv aea aeb aee aeg aeo aer aeu aev ag- aga agb age agg ago agr agu agv aoa aob aoe aog aoo aor aou aov ar- ara arb are arg aro arr aru arv au- aua aub aue aug auo aur auv av- ava avb ave avg avo avr avu b-u baa bab bae bag bao bar bau bav bba bbb bbe bbg bbo bbr bbu be- bea beb bee beg beo ber beu bev bga bgb bge bgg bgo bgr bgu bgv boa bob boe bog boo bor bou bov bra brb bre brg bro brr bru brv bua bub bue bug buo bur buu bva bvb bve bvg bvo bvr bvu bvv eaa eab eae eag eao ear eau eav eba ebb ebe ebg ebo ebr ebu ebv eea eeb eee eeg eeo eer eev ega egb ege egg ego egr egu eo- eoa eob eoe eog eoo eor eou era erb ere erg ero err eru erv eu- eua eub eue eug eur euv eva evb eve evg evo evr evv gaa gab gae gag gao gar gau gav gba gbe gbg gbo gbr gbu gbv ge- gea geb gee geg geo ger geu gev gga ggb ggg ggo ggr ggu ggv goa gob goe gog goo gor gou gov gra grb gre grg gro grr gru grv gu- gua gub gue gug guo gur guu guv gva gvb gve gvg gvo gvr gvu oaa oab oae oag oao oar oau oav ob- oba obb obe obg obo obr obu obv oea oeb oee oeg oeo oer oga oge ogg ogo oo- ooa oob oog ooo oor oov or- ora orb ore org oro orr oru orv ou- oua oue ouo our ov- ova ovb ove ovo ovv ra- raa rab rae rag rao rar rau rav rba rbb rbe rbg rbo rbr rbu re- rea reb ree reg reo rer reu rev rga rgb rge rgg rgo rgr rgv roa rob roe rog roo ror rou rov rra rrb rrg rrr rru rua rub rue rug ruo rur ruu ruv rva rvb rve rvg rvo rvr rvu rvv ua- uaa uab uae uag uao uar uau uav uba ubb ube ubg ubo ubr ubu ubv uea ueb uee ueg uer uga ugb uge ugg ugo ugr ugu uoa uob uoe uog uoo uor ur- ura urb ure urg uro urr uru uua uue uug uur uuu uva uvb uve uvo uvu uvv v-a v-e vaa vab vae vag vao var vau vav vba vbg vbo vbr vbv vea veb vee veg veo ver veu vga vgg vgo vgr vgu voa vob voe vog voo vor vou vov vra vrb vre vrg vrr vru vue vug vur vuv vva vvb vvg vvo vvr vvv

a-be aaaa aaab aaae aaar aaav aaba aabb aaea aaev aage aaoe aaoo aara aare aaro aaru aava abaa abab abae abag abar abau abb- abba abbb abbe abbo abbr abee aber aboa abob aboo abor abou abov abra abro abua abue abug abva aeer aega aer- aera aero aeva ag-o agag agao agar agau agav agba agbo agea agee ager agga agge aggu agob agog agoo agou agra agre agro agua ague agur agva aoba aoeu aora aorb arab arae arag arar arau arba arbe area aree areg areo areu arev 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 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 baar baba babb babe babo babr babu baer baga bage bagg bago bar- bara barb bare barg baro barr baru bau- baug baur bava bave bavu bbau bbbb bbeb bbga bbrg beag bear beau beav beba bebb bebe bebo beeb beeg beer bega begg bego begu beo- beor bera bere berg bero berr beru beur bevo boab boag boar boba bobb bobe bobo bobu boea boee boeo boer boga boge bogg bogo boob booe boog boor bor- bora bore borg boro borr boru boua boue bour bova bove bovo brab brae brag brao brau brav brea breb bree breg breo brer brev broa brob broe brog broo bror brou brrr brue brug bruv buar buba bubb bube bubo bubu buea buer bueu buga buge bugg bugo bur- bura burb bure burg buro burr buru buve eaba eaga eage eara earb eare earo eave ebba ebbo ebbr eber eboe eboo ebor ebro ebru ebur eeea eeee eega eera eerg eero eeva egaa egae egao egar egba egbe egbu egea egee eger eggb egge eggo ego- egor egov egra egre eora eore erau erba erbb erbe ereb erer erev erg- erga ergg ergo erob eroe eroo erra erre erro erua erub erur eruv erve euba euer euge eur- eura eure euro evae evar evea ever evga evoe evoo evra evre gaar gaba gabb gabe gabo gabr gabu gaea gaer gaga gage gagg gago gagu gara garb gare garg garo garr garv gaua gaub gaue gaur gava gave gbag gbbo geab gear geba gebe geer gege gegg gego geo- geog gera gerb gere gero geru geue geva geve gevo gggg goar goba gobe gobo goer goga gogo goog goor gora gorb gore gorg goro gorr gou- goug gour gove grab grae grau grav grbr grea greb gree greg greu grev grob grog groo gror grou grov grrr grua grub grue grug grur grve guaa guag guao guar guba gubb gubu guer guga gugb guge gugg gugu gura gurb gure gurg guro gurr guru guva gvvv o-eo oaau oaer oara oare obba obbo obea ober oboe obor obra obre obro oegb oera oere ogae ogar ogb ogba ogbe ogea ogee oger ogge ogoa ogog ogou ogra ogre ogro ooaa ooba oobe ooer oooo oora oore orab orae orao orar orav orba orbb orbe orbo