a-ii aaaa aaab aaai aaar aaba aabb aabi aabt aaib aaii aara aari aart aata aatt abaa abab abag abai abar abat abb- abba abbb abbi abbr abbt abia abib abig abir abit abra abri abta agag agai agar agat agba agga aggi agia agib agig agii agir agit agra agri agta agtr aiai aiba aiga aiia aiib aiir aira airi airt aita aiti aitr aitt arab arag arai arar arat arba arbi arga argb argi aria arib arig arii arit arr- arra arrg arri arrr arrt arta arti artr at-t ataa atab atai atar atat atia atit atra atri atta atti attr 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 bbbb bbga bbrg bgia biar biat biba bibb bibi biga bigb bigg bigt bira birb birg biri birr birt bita bitt brab brag brai brat bria brig brit brrr btaa btrt bttb gaar gaba gabb gabi gabr gabt gaga gagg gagi gaia gaig gair gait gara garb garg gari garr gart gata gati gatr gatt gbag ggbt gggg giaa giai giat giba gibb giga gigg gigi gira girg giri girr girt gita grab grai grat grbr gria grib grig grit grrr gtaa gtbr gtta iaaa iaai iaat iaba iaia iara iart iata iati 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 raab raag raat raba rabb rabi raga ragg ragi raia raig raii rair rait rara rarb rari rata rati ratt rbbb rbbr rgba rgbi rgit rgtr riaa riab riai riat rib- riba riga rigg rigi riia riri rita riti ritt rrat rrrr rtai 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 tbar tbit tbrb tbta tiaa tiab tiar tiba tibi tiga tigi tigr tiit tira tirb tiri tirr tita titi titt traa trab trag trai trat tri- tria trib trig trit trra trtr ttab ttbb tttt