a-ii a-iv aaaa aaab aaai aaar aaav aaba aabb aabi aabt aaib aaii aara aari aart aata aatt aava abaa abab abag abai abar abat abb- abba abbb abbi abbr abbt abia abib abig abir abit abra abri abta abva agag agai agar agat agav agba agga aggi agia agib agig agii agir agit agra agri agta agtr agva aiai aiba aiga aiia aiib aiir aira airi airt aita aiti aitr aitt aiva arab arag arai arar arat arba arbi arga argb argi aria arib arig arii arit arr- arra arrg arri arrr arrt arta arti artr artv arva arvi at-t ataa atab atai atar atat atia atit atra atri atta atti attr atvi avab avar avat avgi avia avit aviv avra avri avva ba-i baaa baar baat baba babb babi babr baga bagg bagi bagt baia baib baig bair bait bar- bara barb barg bari barr bart bata bati batt bava bavi bbbb bbga bbrg bgia biar biat biba bibb bibi biga bigb bigg bigt bira birb birg biri birr birt bita bitt bivi brab brag brai brat brav bria brig brit brrr brvi btaa btrt bttb btvi gaar gaba gabb gabi gabr gabt gaga gagg gagi gaia gaig gair gait gara garb garg gari garr gart garv gata gati gatr gatt gatv gava gavi gbag ggbt gggg giaa giai giat giba gibb giga gigg gigi gira girg giri girr girt gita giva grab grai grat grav grbr gria grib grig grit grrr gtaa gtbr gtta gvat gvtv gvvv iaaa iaai iaat iaba iaia iara iart iata iati iava ibar ibat ibga ibia ibra ibri ibtb igar igba igga igia igra igri iiii iiit iira iita iitr iitt irai irar iri- iria irig irra irri irta irti itaa itai itar itat itia itra itri itta ivai ivar ivbv ivig raab raag raat raba rabb rabi raga ragg ragi raia raig raii rair rait rara rarb rari rata rati ratt rava ravi rbbb rbbr rgba rgbi rgit rgtr riaa riab riai riat rib- riba riga rigg rigi riia riri rita riti ritt riva rrat rrrr rtai rtva rtvi taa- taag taar taat taba tabb tabi taga tagg tagi taia taig tair tait tara tarb targ tari tarr tart tata tatb tati tatr tatt tatv tava tavi tbar tbit tbrb tbta tbvi tiaa tiab tiar tiba tibi tiga tigi tigr tiit tira tirb tiri tirr tita titi titt tiva tivi traa trab trag trai trat trav tri- tria trib trig trit trra trtr ttab ttbb tttt tvri tvrr tvtv vaar vaat vag- vaga vagg vagi vagt vaia vaig vair vait vara varg vari varr vart vata vati vatt vava vbrg viag viar viga vigr viii vira virb virg viri virr virt vita vitg viti vitt viva vivi vrai vrav vrba vria vt-i vvvv