a-ii aaaa aaab aaai aaal aaar aaba aabb aabi aabl aabt aaib aaii aala aali aall aalo aaoo aara aari aaro aart aata aatt abaa abab abai abal abar abat abb- abba abbb abbi abbo abbr abbt abia abib abil abir abit abla ablo aboa abob abol aboo abor abot abra abri abro abta aiai aiba aibl aibo aiia aiib aiir aila aili aioi aira airi airo airt aita aiti aitr aitt alaa alai alal alao alar alat alb- alba albi albo ali- alia alib alii alil alio alir alit all- alla alli alll allo allr aloa aloi alol aloo alor alot alro alta alti alto aoba aola aora aorb aort arab arai aral arar arat arba arbi aria arib arii aril ario arit arla arli arlo aroa arob aroi aroo aror arr- arra arri arro arrr arrt arta arti arto artr at-l at-t ataa atab atai atal atar atat atia atil atit atla atli atlo atob atoi atol ator atot atra atri atro atta atti atto attr ba-i baaa baal baar baat baba babb babi babo babr baia baib bail baio bair bait bala bali ball balo balt baol bar- bara barb bari baro barr bart bata bati bato batt bbbb bblb bial biao biar biat biba bibb bibi bibl bibo bila bili bill bilo bilt bio- bioi biol biot bira birb biri birl biro birr birt bita bito bitt blaa blab blat blbt blio blir blit blob bloo blot boab boai boal boar boat boba bobb bobi bobo boi- boii boil boit bola boli boll bolo bolt boob bool boor boot bor- bora bori boro borr bort bota botb boti boto bott brab brai brao brat bria bril brio brit broa brob brol broo bror brot brrr btaa btla btob btor btrt bttb iaaa iaai iaal iaat iaba iaia iala iall iara iart iata iati ibar ibat ibia ibot ibra ibri ibro ibtb ibtl iiii iiio iiit iila iioi iioo iira iita iitr iitt ilal ilar ilia ilio ilir ilit ill- illa illi illo illt iloo ilot ioba iobi ioii ioio ioit iola iolo iooi iooo iora iori iota ioto irai iral irao irar iri- iria iril irio irla irlb irob irra irri irta irti itaa itai ital itar itat itia itil itll itoi itol itoo itor itra itri itta itto laaa laal laar laat laba labi labo labr laia lail lair lait lala lali lall lalo lara larb lari larr lart lata lati lato latt lbar lbia lblr lbrt liao liar liat liba libo libr liia liii liir lila lilb lili lill lilo lilt lio- lior lira liri lirl liro lirr lirt lita litb liti litl lito litr litt llao llat llll lloa lloo loar loat lob- loba lobb lobi lobo loir loit lola loli loll lolo loob lool loor loot lora lori loro lota loti lotl loto lotr lott lral lrat lrba lroi lrrr lrta ltbl ltib ltra lttr oall oara obai obal obba obbo obia obit obla oboi obol obor obot obra obri obro oiba oiii oila oira oirt oita oiti olar olat olba olbo olia olib olio olit olla olli ollo olor olot olta ooaa ooba oobi ooia oola oolo oooo oora oort ootb orab orai oral orao orar orat orba orbb orbi orbo ori- oria oril orio orit orla orlo oro- oror orot orra orri orro orta orto otar otit oto- otoo otor otra otro otta otti otto raab raat raba rabb rabi rabl rabo raia raii rail rair rait rala ralb rall ralo ralt raob raol rara rarb rari raro rata rati rato ratt rbbb rbbr riaa riab riai rial riat rib- riba ribo riia rila rill rilo riol riot riri rita riti ritl rito ritt rlab roab roar roat rob- roba robb robi robo robt roia roil roio roir roit rola roll rolo rolt roob rooi rool roor root rora rori roro rort rota roti rotl roto rotr rott rrat rrrr rtai rtlt taa- taal taar taat taba tabb tabi tabl tabo taia tail taio tair tait tala tali tall talo taoa taor tara tarb tari taro tarr tart tata tatb tati tato tatr tatt tbar tbil tbit tbrb tbta tiaa tiab tial tiao tiar tiba tibi tiit tila till tilo tilr tilt tira tirb tiri tirl tiro tirr tita titi tito titt tlli toab toal toat toba tobi tobo tobt toil toit tol- tola toli toll tolo tolt tooa tool toor toot tora tori toro torr tort tota toti toto totr tott traa trab trai tral trao trat tri- tria trib tril trio trit troa troi troo trot trra trtr ttab ttbb tttt