-er a-a a-b a-t aaa aab aae aao aar aat aau aax ab- aba abb abe abo abr abt abu abx aea aeb aee aeo aer aet aeu aex aoa aob aoe aoo aor aot aou aox ar- ara arb are aro arr art aru arx at- ata atb ate ato atr att atu atx au- aua aub aue auo aur aut aux ax- axa axe axo axr axt axx b-u baa bab bae bao bar bat bau bax bba bbb bbe bbo bbr bbt bbu bbx be- bea beb bee beo ber bet beu bex boa bob boe boo bor bot bou box bra brb bre bro brr brt bru brx bta btb bte bto btr btt btu btx bua bub bue buo bur but buu bux bxb bxo bxx eaa eab eae eao ear eat eau eax eba ebb ebe ebo ebr ebt ebu ebx eea eeb eee eeo eer eet eex eo- eoa eob eoe eoo eor eot eou era erb ere ero err ert eru eta etb ete eto etr ett etu etx eu- eua eub eue eur eut eux ex- exa exe exo exr ext exu exx oaa oab oae oao oar oat oau oax ob- oba obb obe obo obr obt obu obx oea oeb oee oeo oer oet oex oo- ooa oob ooo oor oot oox or- ora orb ore oro orr ort oru orx ot- ota otb ote oto otr ott otu ou- oua oue ouo our out ox- oxa oxb oxo oxt oxx ra- raa rab rae rao rar rat rau rax rba rbb rbe rbo rbr rbt rbu rbx re- rea reb ree reo rer ret reu rex roa rob roe roo ror rot rou rox rra rrb rrr rrt rru rta rtb rte rto rtr rtt rtu rtx rua rub rue ruo rur rut ruu rux rxr t-x taa tab tae tao tar tat tau tax tba tbb tbe tbo tbr tbt tbu te- tea teb tee teo ter tet teu tex to- toa tob toe too tor tot tou tox tra trb tre tro trr trt tru trx tta ttb tte tto ttr ttt ttu ttx tua tub tue tuo tur tut tuu tux txe txt txu ua- uaa uab uae uao uar uat uau uba ubb ube ubo ubr ubt ubu ubx uea ueb uee uer uet uoa uob uoe uoo uor uot uox ur- ura urb ure uro urr urt uru urx uta utb ute uto utr utt utu utx uua uue uur uut uuu uxb uxo uxr uxt uxu xaa xar xat xau xbe xbr xbx xee xer xet xeu xex xoa xoo xor xot xox xrt xrx xtr xtx xue xxo xxx

a-be aaaa aaab aaae aaar aaba aabb aabt aaea aaoe aaoo aara aare aaro aart aaru aata aatt abaa abab abae abar abat abau abax abb- abba abbb abbe abbo abbr abbt abee aber abet aboa abob aboo abor abot abou abox abra abro abta abtu abua abue abut aeer aer- aera aero aeta aeto aetr aett aetx aoba aoeu aora aorb aort aout arab arae arar arat arau arax arba arbe area aree areo aret areu arex aroa arob aroe aroo aror arr- arra arre arro arrr arrt arru arta arte arto artr artx arua arub arue arut at-t at-x ataa atab atae atar atat atax atea atee ateo ater atex atob atoe ator atot atra atre atro atru atrx atta atte atto attr attu atua atub atur auaa aube auer aur- aura aure auro aut- aute auto auxa axar axat axer axo- axoa axto axxo ba-x baaa baar baat baba babb babe babo babr babu baer bar- bara barb bare baro barr bart baru barx bata bate bato batt batu bau- baur baux baxt bbau bbbb bbeb bbet bbox bear beat beau beba bebb bebe bebo beeb beer beet beo- beor beot bera bere bero berr bert beru beta bete beto bett betu beur beux boab boar boat boba bobb bobe bobo bobu boea boee boeo boer boet boob booe boor boot boox bor- bora bore boro borr bort boru bota botb bote boto bott boua boue bour bout boxa brab brae brao brat brau brax brea breb bree breo brer bret brex broa brob broe broo bror brot brou brox brrr brue brut brux btaa btex btob btor btrt bttb buar buat buba bubb bube bubo bubu buea buer bueu bur- bura burb bure buro burr burt buru but- buta bute buto butt buxa eaba eara earb eare earo eart eata eate eaux ebba ebbo ebbr eber eboe eboo ebor ebox ebro ebru ebur eeea eeee eera eero eeta eete eetu eext eora eore eota eoto eoux er-x erat erau erba erbb erbe ereb erer eret erob eroe eroo erra erre erro erta ertu erua erub erur etat etbr etee eter etoe etox etra etre etro etta ette etto ettu etua etux euba euer eur- eura eure euro eurt exa- exer exo- exor exrx exta exte extr o-eo oaau oaer oara oare oate obba obbo obea ober obet obex oboe obor obot obox obra obre obro oeax oera oere oeta ooaa ooba oobe ooer oooo oora oore oort ootb orab orae orao orar orat orba orbb orbe orbo orbu ore- orea oreb oreo orer orex oro- oroe oror orot orra orro orta orte orto orub otar otea otee oter oto- otoe otoo otor otra otre otro otta otte otto ottu otur ouat ouea ouer our- oura oure ouro ourt out- outa outb oute outo ouu- oxa- oxea oxer oxo- oxox oxxo raab raat raba rabb rabe rabo rabu raer raob rara rarb rare raro rata rate rato ratt ratu raua raub raue raut raxa rbbb rbbr rea- reae reao rear reat reau reba rebb rebe rebo rebu reeb reet reot reou rera rere rero rert reru reta rete reto retr rett reue reut reuu reux rexx roab roar roat rob- roba robb robe robo robt robu roea roer roet roob roor root roox rora rore roro rort roru rota