a-be a-do aaaa aaab aaad aaae aaap aaar aaav aaba aabb aabd aabp aada aade aaea aaep aaev aaoe aaoo aapa aapo aara aard aare aaro aarp aava abaa abab abad abae abap abar abb- abba abbb abbe abbo abbr abda abdo abed abee aber aboa abob abod aboo abor abov abpa abpd abpp abpr abra abro abva abvd abvp adaa adab adad adae adao adap adar adba adda addd adde addo addr adea adeb adee adeo ader adob adod adoe adoo ador adp- adra adre adro advb aeap aede aeer aer- aera aerd aero aeva aoba aopo aora aorb apao apap apar apba apbr apda apdd apea aped apep aper apev apo- apod apoe apoo apop apor appa appd appr apra apre apro arab arad arae arap arar arba arbe arda arde ardo area ared aree areo arep arev aroa arob arod aroe aroo aror arpa arpe arr- arra arre arro arrr arva arve arvo avab avao avar avda avdp avea aveo aver avor avra avre avro avva avvo baaa baad baar baba babb babe babo babr bada badb badd bade bado badr baed baer bapa bape bapp bar- bara barb bard bare baro barr bava bave bbad bbbb bbdd bbdo bbeb bbpr bd-r bdav bead beap bear beav beba bebb bebe bebo beda bede bedo beeb beed beep beer beo- beod beor bepo bera berd bere bero berr bevo boab boad boar boba bobb bobe bobo boda bodb bode bodo boea boee boeo boep boer boob bood booe boop boor bopa bope bopp bor- bora bord bore boro borr bova bove bovo bpda bpea bpoe bprd brab brad brae brao brav brda brdo brea breb bred bree breo brep brer brev broa brob brod broe broo bror brrr d-bo daab daad daae daap daar daba dabb dabo dabp dada dade dado daeb daer dapa dape dapp dara darb dard dare daro darp darr dava dave dbar dbpd dddd ddpo ddre dead deae deap dear deba debe deda dedd dede dedo deeb deed deep deer deev deop deor depa depe depo depp depr der- dera derb dere dero derp derr derv deva deve devo doab doae doap doar doba dobb dobe dod- doda dodd dode dodo doea doer doob dood doop door dopa dope dopo dopp dopr dora dord dore doro dorp dorr dove dpaa dper dppa draa drab drad drap drar drba drda drea dred dree drev drob drod drop drra dvar dvda dvdr dvoa dvor dvra dvrp eaba eada eadb eadd eadp eaop eapp eara earb eard eare earo earp eave eavp ebba ebbo ebbr ebed eber eboe eboo ebor ebpo ebro edad edar edda edde eddo eddp ede- edea eder edod edra edve eede eeea eeee eera eero eeva eode eora eore epaa epad epee eper epod epor eppa eppo eppp epra eprb epro eprp erad erap erba erbb erbe erda erde ereb ered erer erev erob erod eroe eroo erpa erpe erra erre erro erve evae evap evar evdb evea ever evoe evoo evop evra evre o-eo oade oaer oara oare obad obba obbo obea obed ober oboe obor obra obre obro odbo odda oddd odea oded odeo oder odoo odop odor odra odrp odva oedo oepa oera oere oevp ooaa ooba oobe ooda ooer oooo oora oord oore opap opar oped opep oper opo- opor oppa oppo opra orab orad orae orao orar orav orba orbb orbe orbo orda orde ordo ore- orea oreb ored oreo orer oro- oroe oror orpe orra orro orve orvr ovar ovda ovde ovee over ovo- ovod ovoo ovpp ovra ovre paap paar paba pada padd pade pado paea paep paer papa papb pape papp papr par- para pard pare paro parp parr parv pava pave pavo pbar pbed pbpa pdea pdpa pdpr peab peap pear peba ped- peda pede pedo peed peep peer peev peor pepa pepd pepe pepo per- pera perd pere pero perp perr perv poad poar poba pobo pod- poda podd pode podo poea poed poer pood poop poor pop- popa pope popo popp pora porb pore poro porr povo ppad ppap ppar ppbv pper ppoa ppod pppa pppd pppo pppp prad prae prao prar pre- preb pred pree prep prev pro- proa prob prod proe proo prop prov prpd prrd pvda pvpa raab raad raba rabb rabe rabo rada radd rade rado radr raed raep raer raob raop rapa rapd rape rapp rara rarb rare raro rava rave rbbb rbbr rdap rdbp rder rdev rea- read reae reao reap rear reba rebb rebe rebo reda redd rede redo redr reeb reed reep reev reod reop repe repo repp repr rera rerd rere rero reva revd reve revo revp roab road roap roar rob- roba robb robe robo roda rodd rode rodo roea roed roer roev roob rood roop roor ropa rope ropo rora rore roro rova rove rovo rpdp rpob rpoe rrad rred rrrr rved rver vaad vaar vada vade vado vapa vapb vape vara vard vare varp varr vava vdbp vder vdre vear veba veda vede vedo veep veer veor vepe vepr ver- vera verb verd vere vero veve vevo voad voar voda vode vodo voer voor vor- vora vord vore voro vpro vrap vrav vrba vred vreo vver vvob vvpb vvvv