a-ii aaaa aaab aaai aaal aaar aaba aabb aabi aabl aabt aaib aaii aala aali aall aara aari aart aata aatt abaa abab abai abal abar abat abb- abba abbb abbi abbr abbt abia abib abil abir abit abla abra abri abta aiai aiba aibl aiia aiib aiir aila aili aira airi airt aita aiti aitr aitt alaa alai alal alar alat alb- alba albi ali- alia alib alii alil alir alit all- alla alli alll allr alta alti arab arai aral arar arat arba arbi aria arib arii aril arit arla arli arr- arra arri arrr arrt arta arti artr at-l at-t ataa atab atai atal atar atat atia atil atit atla atli atra atri atta atti attr ba-i baaa baal baar baat baba babb babi babr baia baib bail bair bait bala bali ball balt bar- bara barb bari barr bart bata bati batt bbbb bblb bial biar biat biba bibb bibi bibl bila bili bill bilt bira birb biri birl birr birt bita bitt blaa blab blat blbt blir blit brab brai brat bria bril brit brrr btaa btla btrt bttb iaaa iaai iaal iaat iaba iaia iala iall iara iart iata iati ibar ibat ibia ibra ibri ibtb ibtl iiii iiit iila iira iita iitr iitt ilal ilar ilia ilir ilit ill- illa illi illt irai iral irar iri- iria iril irla irlb irra irri irta irti itaa itai ital itar itat itia itil itll itra itri itta laaa laal laar laat laba labi labr laia lail lair lait lala lali lall lara larb lari larr lart lata lati latt lbar lbia lblr lbrt liar liat liba libr liia liii liir lila lilb lili lill lilt lira liri lirl lirr lirt lita litb liti litl litr litt llat llll lral lrat lrba lrrr lrta ltbl ltib ltra lttr raab raat raba rabb rabi rabl raia raii rail rair rait rala ralb rall ralt rara rarb rari rata rati ratt rbbb rbbr riaa riab riai rial riat rib- riba riia rila rill riri rita riti ritl ritt rlab rrat rrrr rtai rtlt taa- taal taar taat taba tabb tabi tabl taia tail tair tait tala tali tall tara tarb tari tarr tart tata tatb tati tatr tatt tbar tbil tbit tbrb tbta tiaa tiab tial tiar tiba tibi tiit tila till tilr tilt tira tirb tiri tirl tirr tita titi titt tlli traa trab trai tral trat tri- tria trib tril trit trra trtr ttab ttbb tttt