a-be a-ii a-iv aaaa aaab aaae aaai aaap aaar aaav aaba aabb aabi aabp aabt aaea aaep aaev aaib aaii aapa aapi aapt aara aare aari aarp aart aata aatt aava abaa abab abae abai abap abar abat abb- abba abbb abbe abbi abbr abbt abee aber abet abia abib abie abir abit abpa abpi abpp abpr abra abri abta abva abvp aeap aebi aeer aeit aer- aera aeri aeta aetr aett aeva aiai aiba aiea aiee aiet aiia aiib aiir aipa aipe aipi aira aire airi airp airt aita aite aiti aitr aitt aiva apai apap apar apat apba apbr apea apep aper apet apev api- apia apie apip apit appa appr appt apra apre apri aprt apta apte apti aptt aptv arab arae arai arap arar arat arba arbe arbi area aree arei arep aret arev aria arib arie arii arip arit arpa arpe arpi arr- arra arre arri arrr arrt arta arte arti artr artv arva arve arvi at-t ataa atab atae atai atap atar atat atea atee atei atep ater atia atie atip atit atpr atra atre atri atrp atta atte atti attp attr atvi avab avar avat avea aver avia avie avip avit aviv avra avre avri avva ba-i baaa baar baat baba babb babe babi babr baer baia baib baie bair bait bapa bape bapi bapp bapt bar- bara barb bare bari barr bart bata bate bati batt bava bave bavi bbbb bbeb bbet bbpr beap bear beat beav beba bebb bebe bebi beeb beep beer beet beia beir beit bera bere beri berr bert beta bete beti bett betv biap biar biat biba bibb bibe bibi bieb bier biet bipa bipp bira birb bire biri birr birt bita bite bitt bive bivi bpai bpea bpti brab brae brai brat brav brea breb bree brei brep brer bret brev bria brie brit brrr brvi btaa btbp btie btrt bttb btvi eaba eapp eara earb eare earp eart eata eate eati eave eavp ebba ebbr eber ebit eeea eeee eera eeta eete eeva eiei eier eipr eira eire eita eitb eiti eitr epaa epee eper epi- epia epie epip epit eppa eppp epra eprb eprp epta epte eptv erap erat erba erbb erbe ereb erei erer eret erev eria erie erit erpa erpe erra erre erta erve ervi etai etap etat etbr etee eter etra etre etta ette etti evae evap evar evat evea ever evet evia evie evir evra evre i-be iaaa iaai iaap iaat iaba iaea iaep iaia iapa iapp iapt iara iare iart iata iate iati iava ibar ibat ibea ibet ibia ibie ibra ibri ibtb ieat ieet ieie iepa iera iere ieri ieta iett ietv ieva iiie iiii iiit iipa iira iita iitr iitt ipat ipba ipea iper ipet ipie ippa ippr ipri ipta iptv irae irai irap irar irbe irbp iree irer iri- iria irie irip irpa irpe irra irre irri irta irte irti irtp itaa itai itap itar itat itbe itea itep iter itet itia itie itpa itra itri itta ivai ivar ivbv ivea iver ivie ivre paap paar paat paba pabt paea paep paer paia paib paie paip pair pait papa papb pape papi papp papr par- para pare pari parp parr part parv pata pate pati patr patt pava pave pbar pbpa peab peai peap pear peat peba peep peer peet peev peia peip peir peit pepa pepe pepi per- pera pere peri perp perr pert perv peta pete peti petr pett piai piat pibb pibi piea piep pier piet piia piip pipa pipe pipi pipp pira pire piri pirr pita pite piti pitr pitt piva ppap ppar ppbv pper ppib ppie pppa pppp ppta pptt pptv prae prai prar prat pre- preb pree prep pret prev pri- pria prie prii priv prri prti prtp prtr ptab pter pvpa raab raat raba rabb rabe rabi raep raer raia raie raii raip rair rait rapa rape rapi rapp rapt rara rarb rare rari rata rate rati ratp ratt rava rave ravi rbbb rbbr rea- reae reap rear reat reba rebb rebe reeb reep reet reev reia reii reir reit repe repi repp repr rept rera rere reri rert reta rete reti retr rett reva reve revi revp riaa riab riai riat rib- riba ribe riep rier riet riia ripa ripe ripi ripp ripr ript rire riri rita rite riti ritt riva rive rivp rpet rpii rpta rrat rrrr rtai rtee rtei rtpa rttp rtva rtve rtvi rver taa- taar taat taba tabb tabe tabi taer taia taip tair tait tapa tape tapi tapp tapr tapt tara tarb tare tari tarp tarr tart tata tatb tate tati tatr tatt tatv tava tave tavi tbar tbit tbrb tbta tbtp tbvi tear teat teba teer teet teev teia teie teip teir tepa tepe tepi tepp ter- tera tere teri terp terr teta tete teti tetr tett teva tiaa tiab tiar tiba tibi tie- tiea tiee tiei tiep tier tiet tiit tip- tipa tipe tipi tipp tipt tira tirb tire tiri tirr tita tite titi titp titt tiva tivi tpap tper tpia tpir tppa tppp tppr tpte tptp tptr traa trab trae trai trap trat trav tre- trea tree trei tret trev tri- tria trib trie trip trit trpa trpe trpp trpv trra trte trtr ttab ttbb tter tttt tver tvpa tvri tvrr tvtv vaar vaat vaia vaie vair vait vapa vapb vape vapi vara vare vari varp varr vart vata vate vati vatt vava vear veat veba veep veer veet veia veie veii veip veir veit vepe vepr ver- vera verb vere veri vert veta vete veti vetr veve vevi viae viar vibe vier viet viii vipr vira virb vire viri virr virt vita vite viti vitt viva vive vivi vpat vrai vrap vrav vrba vret vria vt-i vtap vtpr vver vvpb vvvv