a-ii a-iv aaaa aaab aaaf aaai aaar aaav aaba aabb aabi aabt aafa aafb aaff aafi aaib aaii aaoo aara aari aaro aart aata aatf aatt aava abaa abab abaf abai abar abat abb- abba abbb abbi abbo abbr abbt abff abia abib abir abit aboa abob abof aboo abor abot abov abra abri abro abta abva afaa afao afar afat affa affi affo afft afia afib afif afir afit afoa afoo afor afr- afra afri afro afta aiai aiba aibo aiff aifv aiia aiib aiir aioi aira airi airo airt aita aitf aiti aitr aitt aiva aoba aora aorb aort aotf arab araf arai arar arat arba arbi arfa arfb arff arft aria arib arif arii ario arit aroa arob aroi aroo aror arr- arra arri arro arrr arrt arta arti arto artr artv arva arvi arvo at-t ataa atab atai atar atat atfb atia atif atit atob atof atoi ator atot atra atri atro atta atti atto attr atvi avab avao avar avat avia avio avit aviv avor avot avra avri avro avva avvo ba-i baaa baaf baar baat baba babb babi babo babr baff bafo baft baia baib baio bair bait bar- bara barb barf bari baro barr bart bata batf bati bato batt bava bavi bbbb bfta bftt biaf biao biar biat biba bibb bibi bibo bifa biff bifi bio- bioi biot bira birb biri biro birr birt bita bito bitt bivi boab boai boar boat boba bobb bobi bobo bofa boff boi- boii boit boob boof boor boot bor- bora borf bori boro borr bort bota botb boti boto bott bova bovi bovo brab braf brai brao brat brav bria brio brit broa brob broo bror brot brrr brvi btaa btaf btob btor btrt bttb btvi faaa faba fabi fabo fafa faff fafi fafo faio fair fait fara farb faro farr fart fata fatf fati fato fatt fava favi fbar ffar ffff ffii ffrr fftf fiaa fiaf fiar fiat fiba fifa fiff fifi fifo fift fiii fior fira fita fiti fitt fivb foaf foar foba fobt fofo foia foof foot for- fora forb fori foro forr fort fota foti foto fott fr-v frab frat fria frib frio frit frob frot frta frvt ftii iaaa iaai iaat iaba iaff iaia iara iart iata iati iava ibar ibat ibfi ibia ibot ibra ibri ibro ibtb ifaa ifao ifar ifat ifbb ifit ifor ifra ifrb ifrf ifri ifta ifto ifva iifa iiii iiio iiit iioi iioo iira iita iitr iitt ioba iobi ioii ioio ioit ioof iooi iooo iora iori iota iotf ioto iraf irai irao irar iri- iria irio irob irov irra irri irta irtf irti itaa itaf itai itar itat itfa itia itif itof itoi itoo itor itra itrf itri itta ittf itto ivai ivao ivar ivbv ivor oafo oara obai obba obbo obfv obia obit oboi obor obot obra obri obro obvi off- offa offo offr ofit ofor ofra ofta oiav oiba oiii oira oirt oita oiti ooaa ooba oobi ooff ooia oooo oora oort ootb orab orai orao orar orat orav orba orbb orbi orbo orff orfi ori- oria orif orio orit oro- orof oror orot orra orri orro orta orto orvr otar otif otit oto- otof otoo otor otov otra otro otta otti otto ovar ovi- ovo- ovoo ovot ovra raab raaf raat raba rabb rabi rabo rafa raff rafi raft raia raif raii rair rait raob rara rarb rarf rari raro rata ratf rati rato ratt rava ravi rbaf rbbb rbbr riaa riab riai riat rib- riba ribo rifa riff rift riia riif riot riri rita riti rito ritt riva rivo roab roaf roar roat rob- roba robb robi robo robt roff rofo roia roif roio roir roit roob roof rooi roor root rora rori roro rort rota roti roto rotr rott rova rovi rovo rrat rrif rrrr rtai rtbf rtfb rtva rtvi taa- taaf taar taat taba tabb tabi tabo tafa taff tafi tafo taft taia taio tair tait taoa taor tara tarb tarf tari taro tarr tart tata tatb tati tato tatr tatt tatv tava tavi tavo tbaf tbar tbit tbrb tbta tbvi tfot tiaa tiab tiaf tiao tiar tiba tibi tifa tiff tifo tift tiit tira tirb tiri tiro tirr tita titi tito titt tiva tivi tivo toab toat toba tobi tobo tobt tofa toff tofi tofo toft toit tooa toof toor toot tora torf tori toro torr tort torv tota toti toto totr tott tova tovo traa trab traf trai trao trat trav trfr tri- tria trib trif trio trit troa troi troo trot trra trtr ttab ttbb ttfa ttff tttt tvri tvro tvrr tvtv vaar vaat vafa vaia vaio vair vait vara varf vari varr vart vata vati vato vatt vava vfat vfib vfor viar viff viii vira virb viri viro virr virt vita viti vito vitt viva vivi vivo voar voat voff vofr voia voio voir voit voor voot vor- vora vori voro vort vota voto vrai vrav vrba vria vrio vrot vrto vt-i vvob vvvv