a-be aaaa aaab aaae aaap aaar aaba aabb aabp aaea aaep aapa aara aare aarp aaru aaup abaa abab abae abaj abap abar abau abb- abba abbb abbe abbr abee aber abpa abpp abpr abra abua abue aeap aeer aer- aera ajab ajar ajba ajee ajep ajpa ajur apap apar apba apbr apea apep aper apeu appa appr appu apra apre apua apup arab arae arap arar arau arba arbe area aree arep areu arja arje arju arpa arpe arpu arr- arra arre arrr arru arua arub arue arup auaa aube auer auja aur- aura aure baaa baar baba babb babe babr babu baer baja baju bapa bape bapp bapu bar- bara barb bare barr baru bau- baur bbau bbbb bbeb bbpr beap bear beau beba bebb bebe beeb beej beep beer beja bera bere berr beru beur bpea brab brae braj brau brea breb bree brep brer brje brrr brue brup buar buba bubb bube bubu buea buer bueu buja buje buju bupa bur- bura burb bure burj burp burr buru eaba eapp eara earb eare earp ebba ebbr eber ebru ebur eeea eeee eera ejer epaa epee eper eppa eppp epra eprb eprp epub erap erau erba erbb erbe ereb erer erja erpa erpe erra erre erua erub erur euba euer eur- eura eure jaap jaar jaba jabr jaer jaja jaju japa jape japp jara jare jarp jarr jaru jaup jaur jbaa jbar jear jebb jebe jeep jeer jeju jera jere jeru jeur jjap jjar jrbr juab juar juba jube jubu juja juju jupe jupp jupu jura jure jurr paap paar paba pabu paea paep paer paja paje paju papa papb pape papp papr par- para pare parp parr paru paua paup paur pbar pbpa peab peap pear peau peba peep peer peja peje pepa pepe per- pera pere perp perr peru peur ppap ppar pper pppa pppp ppru ppur prae praj prar prau pre- preb pree prep preu prue pruu pu-e puar pube pubu puer pueu puja puju pupa pupe pupu pur- pura purb pure purp purr puru raab raaj raba rabb rabe rabu raep raer raja raje raju rapa rape rapp rara rarb rare raua raub raue raup rbbb rbbr rbpj rea- reae reap rear reau reba rebb rebe rebu reeb reep reja repe repp repr repu rera rere reru reue reup reuu rrrr ruba rubb rube rubp rubu ruer ruja rupa rupe rupp rura rure rurp ruru u-rp uaru uaua ubar ubba ubbe uber ubja ubra ueba upar upbe uppa uppe uppp uppu upra upup urap urau urba urbe ure- urea urra urre urup urur uuuu