a-be a-do aaaa aaab aaad aaae aaap aaar aaba aabb aabd aabp aabt aada aade aadt aaea aaep aaoe aaoo aapa aapo aapt aara aard aare aaro aarp aart aata aatt abaa abab abad abae abap abar abat abb- abba abbb abbe abbo abbr abbt abda abdo abed abee aber abet aboa abob abod aboo abor abot abpa abpd abpp abpr abra abro abta adaa adab adad adae adao adap adar adat adba adda addd adde addo addr adea adeb adee adeo ader adet adob adod adoe adoo ador adot adp- adra adre adro adta aeap aede aedt aeer aer- aera aerd aero aeta aeto aetr aett aoba aopo aora aorb aort aotd apao apap apar apat apba apbr apda apdd apea aped apep aper apet apo- apod apoe apoo apop apor apot appa appd appr appt apra apre apro aprt apta apte aptt arab arad arae arap arar arat arba arbe arda arde ardo area ared aree areo arep aret aroa arob arod aroe aroo aror arpa arpe arr- arra arre arro arrr arrt arta arte arto artr at-t ataa atab atad atae atap atar atat atdt atea ated atee ateo atep ater atob atod atoe atop ator atot atpr atra atre atro atrp atta atte atto attp attr baaa baad baar baat baba babb babe babo babr bada badb badd bade bado badr baed baer bapa bape bapp bapt bar- bara barb bard bare baro barr bart bata bate bato batt bbad bbbb bbdd bbdo bbeb bbet bbpr bd-r bead beap bear beat beba bebb bebe bebo beda bede bedo beeb beed beep beer beet beo- beod beor beot bepo bera berd bere bero berr bert beta bete beto bett boab boad boar boat boba bobb bobe bobo boda bodb bode bodo boea boee boeo boep boer boet boob bood booe boop boor boot bopa bope bopp bor- bora bord bore boro borr bort bota botb botd bote boto bott bpda bpea bpoe bpot bprd brab brad brae brao brat brda brdo brdt brea breb bred bree breo brep brer bret broa brob brod broe broo bror brot brrr btaa btbp btdt btob btor btrt bttb d-bo daab daad daae daap daar daba dabb dabo dabp dabt dada dade dado daeb daer dapa dape dapp dara darb dard dare daro darp darr dart data date dato datp datr datt dbar dbpd dbtt dddd ddot ddpo ddre dead deae deap dear deba debe debt deda dedd dede dedo deeb deed deep deer deet deop deor depa depe depo depp depr dept der- dera derb dere dero derp derr deta dete deto detr doab doae doap doar doat doba dobb dobe dod- doda dodd dode dodo doea doer doob dood doop door doot dopa dope dopo dopp dopr dopt dora dord dore doro dorp dorr dort dota dotd dote doto dott dpaa dpdt dper dppa draa drab drad drap drar drat drba drda drea dred dree dret drob drod drop drot drra dtaa dtap dtdp dted dtor dtot dttp eaba eada eadb eadd eadp eaop eapp eara earb eard eare earo earp eart eata eate ebba ebbo ebbr ebed eber eboe eboo ebor ebpo ebro edad edar edda edde eddo eddp ede- edea eder edod edra edta eede eeea eeee eera eero eeta eete eode eora eore eota eotd eoto epaa epad epee eper epod epor epot eppa eppo eppp epra eprb epro eprp epta epte erad erap erat erba erbb erbe erda erde ereb ered erer eret erob erod eroe eroo erpa erpe erra erre erro erta etap etat etbr etee eter etoe etra etre etro etta ette etto o-eo oade oaer oara oare oate obad obba obbo obdt obea obed ober obet oboe obor obot obra obre obro obtd odbo odda oddd odea oded odeo oder odet odoo odop odor odot odra odrp oedo oepa oera oere oeta ooaa ooba oobe ooda ooer oooo oora oord oore oort ootb ootp opap opar oped opep oper opet opo- opor oppa oppo opra opto orab orad orae orao orar orat orba orbb orbe orbo orda orde ordo ore- orea oreb ored oreo orer oro- oroe oror orot orpe orra orro orta orte orto otap otar otbd otea oted otee otep oter oto- otoe otoo otor otpp otra otre otro otta otte otto paap paar paat paba pabt pada padd pade pado paea paep paer papa papb pape papp papr par- para pard pare paro parp parr part pata patd pate pato patr patt pbar pbed pbpa pdea pdpa pdpr peab peap pear peat peba ped- peda pede pedo peed peep peer peet peor pepa pepd pepe pepo per- pera perd pere pero perp perr pert peta pete peto petr pett poad poar poat poba pobo pod- poda podd pode podo poea poed poer poet pood poop poor poot pop- popa pope popo popp popt pora porb pore poro porr port pota potd pote poto pott ppad ppap ppar pper ppoa ppod pppa pppd pppo pppp ppta pptt prad prae prao prar prat pre- preb pred pree prep pret pro- proa prob prod proe proo prop prot prpd prrd prtp prtr ptab pter ptop ptpd ptrd raab raad raat raba rabb rabe rabo rada radd rade rado radr radt raed raep raer raob raop rapa rapd rape rapp rapt rara rarb rare raro rata rate rato ratp ratt rbbb rbbr rdap rdbp rder rea- read reae reao reap rear reat reba rebb rebe rebo reda redd rede redo redr reeb reed reep reet reod reop reot repe repo repp repr rept rera rerd rere rero rert reta retd rete reto retr rett roab road roap roar roat rob- roba robb robe robo robt roda rodd rode rodo roea roed roer roet roob rood roop roor root ropa rope ropo rora rore roro rort rota rote roto rotr rott rpdp rpet rpob rpoe rpta rptd rrad rrat rred rrrr rtdt rtee rtpa rttp taa- taar taat taba tabb tabe tabo tada tade tado taer taoa taor tapa tape tapo tapp tapr tapt