a-a a-b a-i a-t aaa aab aai aam aao aar aat ab- aba abb abi abm abo abr abt ai- aia aib aii aim aio air ait ama amb ami amm amo amr amt aoa aob aoi aom aoo aor aot ar- ara arb ari arm aro arr art at- ata atb ati atm ato atr att baa bab bai bam bao bar bat bba bbb bbi bbm bbo bbr bbt bi- bia bib bii bim bio bir bit bma bmb bmi bmm bmo bmr bmt boa bob boi bom boo bor bot bra brb bri brm bro brr brt bta btb bti btm bto btr btt ia- iaa iab iai iam iao iar iat iba ibb ibi ibm ibo ibr ibt iia iib iii iim iio iir iit im- ima imb imi imm imo imt io- ioa iob ioi iom ioo ior iot ir- ira irb iri irm iro irr irt ita itb iti itm ito itt m-o m-r maa mab mai mam mao mar mat mba mbb mbi mbm mbo mbr mbt mi- mia mib mii mim mio mir mit mma mmb mmi mmm mmo mmr mmt moa mob moi mom moo mor mot mra mrb mri mrm mro mrr mrt mta mtb mti mtm mto mtr mtt o-i oaa oab oai oam oao oar oat ob- oba obb obi obm obo obr obt oia oib oii oim oio oir oit om- oma omb omi omm omo omr omt oo- ooa oob ooi oom ooo oor oot or- ora orb ori orm oro orr ort ot- ota otb oti otm oto otr ott ra- raa rab rai ram rao rar rat rba rbb rbi rbm rbo rbr rbt ria rib rii rim rio rir rit rma rmb rmi rmm rmo rmr rmt roa rob roi rom roo ror rot rra rrb rri rrm rrr rrt rta rtb rti rtm rto rtr rtt taa tab tai tam tao tar tat tba tbb tbi tbm tbo tbr tbt tia tib tii tim tio tir tit tma tmb tmi tmm tmo tmr tmt to- toa tob toi tom too tor tot tra trb tri trm tro trr trt tta ttb tti ttm tto ttr ttt

a-ii aaaa aaab aaai aaam aaar aaba aabb aabi aabm aabt aaib aaii aama aamb aami aamo aamr aaoo aara aari aarm aaro aart aata aatt abaa abab abai abam abar abat abb- abba abbb abbi abbo abbr abbt abia abib abim abir abit abma abmb abmt aboa abob aboo abor abot abra abri abro abta aiai aiba aibo aiia aiib aiir aimi aimm aimo aioi aira airi airo airt aita aiti aitr aitt amaa amai amam amar amat amb- amba ambi ambo ambr amia amib amii amir amit amm- amma ammi ammo amob amoi amoo amor amot amra amri amro amta amti amto aoba aoma aora aorb aort arab arai aram arar arat arba arbi aria arib arii arim ario arit arma armi armm armo armt aroa arob aroi arom aroo aror arr- arra arri arro arrr arrt arta arti arto artr at-t ataa atab atai atar atat atia atim atit atm- atma atmo atob atoi atom ator atot atra atri atrm atro atta atti atto attr ba-i baaa baam baar baat baba babb babi babm babo babr baia baib baio bair bait bama bamb bami bamm bar- bara barb bari barm baro barr bart bata bati bato batt bbbb biao biar biat biba bibb bibi bibo bima bimo bio- bioi biot bira birb biri biro birr birt bita bito bitt bmaa bmir bmmi boab boai boar boat boba bobb bobi bobo boi- boii boim boit boma bomb bomi bomt boob boom boor boot bor- bora bori borm boro borr bort bota botb boti boto bott brab brai bram brao brat bria brim brio brit broa brob brom broo bror brot brrm brrr btaa btob btor btrt bttb iaaa iaai iaat iaba iabm iaia iaim iama iamb iami iamt iara iart iata iati ibar ibat ibbm ibia ibim ibma ibot ibra ibri ibro ibtb iiii iiio iiit iioi iioo iira iita iitm iitr iitt imai imam imao imar imat imba imbi imir imit imma immi immo immt imra imri imro imrr imta imto ioba iobi ioii ioio ioit ioma iomo iooi iooo iora iori iota ioto irai iram irao irar irbm iri- iria irio irma irmo irob irra irri irta irti itaa itai itam itar itat itia itim itma itmo itoi itoo itor itra itri itta itto ma-i maaa maai maam maar maat maba mabi mabo maia maib maii maim maio mair mait mama mami mamo maoi maor mar- mara mari marm maro marr mart mata mati mato matr matt mbam mbba mbia mbim mbio mbta miaa miab miai miam miao miat miii miio miit mim- mima mimi mimo mio- mira miri miro mirr mirt mit- mita mitb miti mitm mito mitt mmaa mmab mmai mmar mmii mmmm mmor moaa moab moai moam moar moat moba mobb mobi mobo moii moio moir moit moma momi momo mooa moob moor moot mora morb mori moro mort mota motb moti motm moto mott mrbb mrbm mria mrta mrtm mrtt mtaa mtab mtbo mtoa mtom mtor mtrr mttr oama oara obai obba obbo obia obit oboi obor obot obra obri obro oiba oiii oimb oira oirt oita oiti omai omam omao omar ombo omia omim omio omit omma omo- omoa omoi omoo omor omra omri omro ooaa ooba oobi ooia ooma oooo oora oort ootb orab orai oram orao orar orat orba orbb orbi orbo ori- oria orio orit orma ormo oro- orom oror orot orra orri orro orta orto otar otit otma oto- otoo otor otra otro otta otti otto raab raam raat raba rabb rabi rabo raia raii raim rair rait rama ramb rami ramm ramo raob raom rara rarb rari raro rata rati rato ratt rbbb rbbr riaa riab riai riam riat rib- riba ribo riia rima rimi rimm rimo riom riot riri rita riti rito ritt roab roam roar roat rob- roba robb robi