a-ii aaaa aaab aaai aaam aaar aaba aabb aabi aabm aaib aaii aama aamb aami aamo aamr aaoo aara aari aarm aaro abaa abab abai abam abar abb- abba abbb abbi abbo abbr abia abib abim abir abma abmb aboa abob aboo abor abra abri abro aiai aiba aibo aiia aiib aiir aimi aimm aimo aioi aira airi airo amaa amai amam amar amb- amba ambi ambo ambr amia amib amii amir amm- amma ammi ammo amob amoi amoo amor amra amri amro aoba aoma aora aorb arab arai aram arar arba arbi aria arib arii arim ario arma armi armm armo aroa arob aroi arom aroo aror arr- arra arri arro arrr ba-i baaa baam baar baba babb babi babm babo babr baia baib baio bair bama bamb bami bamm bar- bara barb bari barm baro barr bbbb biao biar biba bibb bibi bibo bima bimo bio- bioi bira birb biri biro birr bmaa bmir bmmi boab boai boar boba bobb bobi bobo boi- boii boim boma bomb bomi boob boom boor bor- bora bori borm boro borr brab brai bram brao bria brim brio broa brob brom broo bror brrm brrr iaaa iaai iaba iabm iaia iaim iama iamb iami iara ibar ibbm ibia ibim ibma ibra ibri ibro iiii iiio iioi iioo iira imai imam imao imar imba imbi imir imma immi immo imra imri imro imrr ioba iobi ioii ioio ioma iomo iooi iooo iora iori irai iram irao irar irbm iri- iria irio irma irmo irob irra irri ma-i maaa maai maam maar maba mabi mabo maia maib maii maim maio mair mama mami mamo maoi maor mar- mara mari marm maro marr mbam mbba mbia mbim mbio miaa miab miai miam miao miii miio mim- mima mimi mimo mio- mira miri miro mirr mmaa mmab mmai mmar mmii mmmm mmor moaa moab moai moam moar moba mobb mobi mobo moii moio moir moma momi momo mooa moob moor mora morb mori moro mrbb mrbm mria oama oara obai obba obbo obia oboi obor obra obri obro oiba oiii oimb oira omai omam omao omar ombo omia omim omio omma omo- omoa omoi omoo omor omra omri omro ooaa ooba oobi ooia ooma oooo oora orab orai oram orao orar orba orbb orbi orbo ori- oria orio orma ormo oro- orom oror orra orri orro raab raam raba rabb rabi rabo raia raii raim rair rama ramb rami ramm ramo raob raom rara rarb rari raro rbbb rbbr riaa riab riai riam rib- riba ribo riia rima rimi rimm rimo riom riri roab roam roar rob- roba robb robi robo roia roio roir roma romb romi romm romo roob rooi room roor rora rori roro rrrr