-er a-a a-b aaa aab aae aao aar aau ab- aba abb abe abo abr abu aea aeb aee aeo aer aeu aoa aob aoe aoo aor aou ar- ara arb are aro arr aru au- aua aub aue auo aur b-u baa bab bae bao bar bau bba bbb bbe bbo bbr bbu be- bea beb bee beo ber beu boa bob boe boo bor bou bra brb bre bro brr bru bua bub bue buo bur buu eaa eab eae eao ear eau eba ebb ebe ebo ebr ebu eea eeb eee eeo eer eo- eoa eob eoe eoo eor eou era erb ere ero err eru eu- eua eub eue eur oaa oab oae oao oar oau ob- oba obb obe obo obr obu oea oeb oee oeo oer oo- ooa oob ooo oor or- ora orb ore oro orr oru ou- oua oue ouo our ra- raa rab rae rao rar rau rba rbb rbe rbo rbr rbu re- rea reb ree reo rer reu roa rob roe roo ror rou rra rrb rrr rru rua rub rue ruo rur ruu ua- uaa uab uae uao uar uau uba ubb ube ubo ubr ubu uea ueb uee uer uoa uob uoe uoo uor ur- ura urb ure uro urr uru uua uue uur uuu

a-be aaaa aaab aaae aaar aaba aabb aaea aaoe aaoo aara aare aaro aaru abaa abab abae abar abau abb- abba abbb abbe abbo abbr abee aber aboa abob aboo abor abou abra abro abua abue aeer aer- aera aero aoba aoeu aora aorb arab arae arar arau arba arbe area aree areo areu aroa arob aroe aroo aror arr- arra arre arro arrr arru arua arub arue auaa aube auer aur- aura aure auro baaa baar baba babb babe babo babr babu baer bar- bara barb bare baro barr baru bau- baur bbau bbbb bbeb bear beau beba bebb bebe bebo beeb beer beo- beor bera bere bero berr beru beur boab boar boba bobb bobe bobo bobu boea boee boeo boer boob booe boor bor- bora bore boro borr boru boua boue bour brab brae brao brau brea breb bree breo brer broa brob broe broo bror brou brrr brue buar buba bubb bube bubo bubu buea buer bueu bur- bura burb bure buro burr buru eaba eara earb eare earo ebba ebbo ebbr eber eboe eboo ebor ebro ebru ebur eeea eeee eera eero eora eore erau erba erbb erbe ereb erer erob eroe eroo erra erre erro erua erub erur euba euer eur- eura eure euro o-eo oaau oaer oara oare obba obbo obea ober oboe obor obra obre obro oera oere ooaa ooba oobe ooer oooo oora oore orab orae orao orar orba orbb orbe orbo orbu ore- orea oreb oreo orer oro- oroe oror orra orro orub ouea ouer our- oura oure ouro ouu- raab raba rabb rabe rabo rabu raer raob rara rarb rare raro raua raub raue rbbb rbbr rea- reae reao rear reau reba rebb rebe rebo rebu reeb reou rera rere rero reru reue reuu roab roar rob- roba robb robe robo robu roea roer roob roor rora rore roro roru roua roub roue rrrr ruba rubb rube rubu ruer rura rure ruro ruru uaru uaua ubar ubba ubbe ubbo uber ubra ueba uor- uore urao urau urba urbe ure- urea uro- uroa uroo urra urre urur uuuu

-aaa- aaaee aabaa aabba aabra aarau abaab ababa ababe ababu abaer abara abare abaru abbar abbou abbur abear abeau abeba abebe abeer abera abere aberr aboab abobo abora abore aboue abrar abreu abura aburr aeaea aebbe aereo aero- aeroe aerru aoure ar-ab arab- araba arabe arabo araea arara arare araru arbab arbar arbee arber arbor arbre areae arear areo- arere arero aroab aroar aroba arobe aroer aroor arora arore arrau arrea arroe arrou arrua aruaa aruba arura aruru auber aurae aurar aurea auro- auroa auror aurra baabe babar babau babee baber baboo babou babra babur baoro baraa barab barao barar barba barbe barbu barea bareo barer baro- baroa baroo baror barra barre barro barru barua baubo bauer baura baure bauru bbbee bbear be-er be-ro beara beare bebar beber bebra beebe beour berar berau berba berbe berea berob beroe beror berra berre berru beuer beure bo-bo boaro bobar bobea bobr bobre boero boeur booba booer boora boore booru borau borba borbo borea boree borer boro- boroa boroo borou borra borre borro bouar bouba bouee bouer boura boure breba brebu breer breo- brera brere breu- brobo broer brora broue brrar brrrr bruer bubba bubbe buber buraa burao burea buroo burra burro burru earar earou ebara ebber eboue ebure eeeee eorre erbaa erbar erbbe erber erear erere eroor erora erore error eubro euro- euroa eurre o-r-b oarer oaror obaba obara obora oboro oboue obrab obreb oo-er ooooo oraba oraea orara orare orbea orear oreo- orera orere orero orobe orobo oroer oroua orube oruro ouara ouera ouoro ourba oure- ourea ra-ra raaba raabe raaor rabab rabba rabbe rabor rabou rarae rareb raree rarer rear- reaue rebab rebar rebbe reber rebra reere rere- reree rerob reuar reuer ro-ro roabe roaue robab robar robbe robbo rober robo- robor robur roera roero rooba rooer roore rooue rorbu rorer rorra rouba rouer roura roure rubab rubba rubee ruber rubor rubra ruere uaroo uber- ubobo uouee uraba urare urbar urea- ureae ureo- urera uroob urour urrao urrea urubu uuuuu

aaaaba aabroo ababou abaera abaroa abburu abeere aberra abobra abrera aerobe aourou arabo- ararao araua araura araure arbaer arbore arbour arbra areare areora arorae aroura arraba arrear arreau arrebo arrere arroba arrour aruaru auboue aubure aurora aurore auroue baabaa baabar baarbu baaror baauer bababe babare babbar baberu baboua babrru babura baobab bar-or barara barbae barbar barbee barber barbra barbre barbro barera barrea barrer barrou baruar baubee bauera bauour baurua bbbbbb bearer beebea beebee beraba berare berbar berbee berbeo berber berere beroea berour berrer berroa berube beurre boabab bobara bobbar bobbau bobber boeber boerre boober booboo booue borbor boreau borore bororo boubou boueer bouree bourou