a-ii aaaa aaab aaaf aaai aaap aaar aaba aabb aabi aabp aabt aafa aafb aaff aafi aaib aaii aaoo aapa aapi aapo aapt aara aari aaro aarp aart aata aatf aatt abaa abab abaf abai abap abar abat abb- abba abbb abbi abbo abbr abbt abff abia abib abir abit aboa abob abof aboo abor abot abpa abpi abpp abpr abra abri abro abta afaa afao afap afar afat affa affi affo afft afia afib afif afir afit afoa afoo afor afpa afr- afra afri afro afta aftp aiai aiba aibo aiff aiia aiib aiir aioi aipa aipf aipi aira airi airo airp airt aita aitf aiti aitr aitt aoba aopo aora aorb aort aotf apai apao apap apar apat apba apbr apfa apfo apft api- apia apio apip apit apo- apof apoo apop apor apot appa appr appt apra apri apro aprt apta apti aptt arab araf arai arap arar arat arba arbi arfa arfb arff arft aria arib arif arii ario arip arit aroa arob aroi aroo aror arpa arpi arr- arra arri arro arrr arrt arta arti arto artr at-t ataa atab atai atap atar atat atfb atia atif atip atit atob atof atoi atop ator atot atpr atra atri atro atrp atta atti atto attp attr ba-i baaa baaf baar baat baba babb babi babo babr baff bafo baft baia baib baio bair bait bapa bapi bapp bapt bar- bara barb barf bari baro barr bart bata batf bati bato batt bbbb bbpr bfpo bfpp bfta bftt biaf biao biap biar biat biba bibb bibi bibo bifa biff bifi bio- bioi biot bipa bipp bira birb biri biro birr birt bita bito bitt boab boai boar boat boba bobb bobi bobo bofa boff boi- boii boit boob boof boop boor boot bopa bopp bor- bora borf bori boro borr bort bota botb boti boto bott bpai bpot bptf bpti brab braf brai brao brat bria brio brit broa brob broo bror brot brrr btaa btaf btbp btob btor btrt bttb faaa faap faba fabi fabo fafa faff fafi fafo faio fair fait fapa fapp fara farb faro farp farr fart fata fatf fati fato fatt fbar fbop ffar ffff ffii ffrr fftf fiaa fiaf fiap fiar fiat fiba fibp fifa fiff fifi fifo fift fiii fior fipa fipp fira fita fiti fitt foaf foar foba fobt fofo foia foof foot fopp for- fora forb fori foro forr fort fota foti foto fotp fott fpaa fpra fprf frab frap frat fria frib frio frip frit frob frop frot frta ftii ftop iaaa iaai iaap iaat iaba iaff iafp iaia iapa iapf iapp iapt iara iart iata iati ibar ibat ibfi ibia ibot ibra ibri ibro ibtb ifaa ifao ifar ifat ifbb ifit ifor ifpa ifpo ifra ifrb ifrf ifri ifta ifto iifa iiii iiio iiit iioi iioo iiop iipa iipf iira iita iitr iitt ioba iobi ioii ioio ioit ioof iooi iooo iora iori iota iotf ioto ipaf ipat ipba ipop ippa ippf ippo ippr ipri ipta ipto iraf irai irao irap irar irbp iri- iria irio irip irob irop irpa irra irri irta irtf irti irtp itaa itaf itai itap itar itat itfa itia itif itof itoi itoo itor itpa itra itrf itri itta ittf itto oafo oapi oara obai obba obbo obia obit oboi obor obot obra obri obro off- offa offo offr ofit ofor ofra ofta oftp oiba oiii oira oirt oita oiti ooaa ooba oobi ooff ooia oooo oora oort ootb ootp opap opar opia opii opio opit opo- opor oppa oppi oppo opra opti opto orab orai orao orar orat orba orbb orbi orbo orff orfi ori- oria orif orio orit oro- orof oror orot orpi orra orri orro orta orto otap otar otfp otif otit oto- otof otoo otor otpp otra otro otta otti otto paap paar paat paba pabt pafa paff paia paib paio paip pair pait papa papb papi papp papr par- para parf pari paro parp parr part pata pati pato patr patt pbar pbpa pbrf pfaa pfff pffr pfft pfit pfra piaf piai piao piat pibb pibi pifa piff piia piip piob piot pipa pipi pipo pipp pira piri piro pirr pita pitf piti pito pitr pitt poar poat poba pobo poff pofi poia poio poof poop poor poot pop- popa popi popo popp popt pora porb pori poro porr port pota potf poti poto pott ppap ppar ppfa ppib ppif ppoa pppa pppo pppp pprf ppta pptt prai prao prar prat pri- pria prif prii pro- proa prob prof proo prop prot prri prti prtp prtr ptab ptaf ptop ptrf raab raaf raat raba rabb rabi rabo rafa raff rafi raft raia raif raii raip rair rait raob raop rapa rapi rapp rapt rara rarb rarf rari raro rata ratf rati rato ratp ratt rbaf rbbb rbbr riaa riab riai riat rib- riba ribo rifa riff rift riia riif riot ripa ripi ripp ripr ript riri rita riti rito ritt roab roaf roap roar roat rob- roba robb robi robo robt roff rofo roia roif roio roir roit roob roof rooi roop roor root ropa ropo rora rori roro rort rota roti roto rotr rott rpii rpob rpof rpta rrat rrif rrrr rtai rtbf rtfb rtpa rttp taa- taaf taar taat taba tabb tabi tabo tafa taff tafi tafo taft taia taio taip tair tait taoa taor tapa tapi tapo tapp tapr tapt tara tarb tarf tari taro tarp tarr tart tata tatb tati tato tatr tatt tbaf tbar tbit tbrb tbta tbtp tfot tfpt tftp tiaa tiab tiaf tiao tiar tiba tibi tifa tiff tifo tift tiit tiop tip- tipa tipi tipo tipp tipt tira tirb tiri tiro tirr tita titi tito titp titt toab toat toba tobi tobo tobt tofa toff tofi tofo toft toit tooa toof toor toot top- topa topf topi topo topp topt tora torf tori toro torp torr tort tota toti toto totr tott tpap tpia tpir tppa tppp tppr tptp tptr traa trab traf trai trao trap trat trfr