a-ii aaaa aaab aaac aaai aaar aaba aabb aabc aabi aaca aacb aacc aaci aaco aacr aaib aaic aaii aaoo aara aarc aari aaro abaa abab abac abai abar abax abb- abba abbb abbi abbo abbr abca abcb abcc abci abcr abia abib abic abir aboa abob aboo abor abox abra abrc abri abro acaa acab acac acai acar acba acca accc acci acco aci- acia acic acir acoa acor acr- acra acrc acri acro acrr aiai aiba aibo aica aicc aicr aiia aiib aiic aiir aioc aioi aira airi airo airx aixa aixi aoba aoca aora aorb arab arac arai arar arax arba arbi arc- arca arci arco aria arib arii ario aroa arob aroi aroo aror arr- arra arrc arri arro arrr axar axi- axia axo- axoa axxo ba-i ba-x baaa baar baba babb babi babo babr bac- baca bacc baci baco baia baib baic baio bair baix bar- bara barb barc bari baro barr barx baxi bbbb bbci bbox bbrc bcaa bcar bcbc bcca bccc bcci bcia bcor bcra biao biar biba bibb bibi bibo bica bicc bici bico bio- bioc bioi biox bira birb biri biro birr birx bixa bixi boab boac boai boar boba bobb bobi bobo boca boco boi- boii boob booc boor boox bor- bora bori boro borr boxa brab brac brai brao brax brca brcb bria bric brio brix broa brob broc broo bror brox brrr c-bo caaa caab caac caba cabi cabo cac- caca cacc caci caco cacr caia caib caic caio cair caix caoi caor cara carb carc cari caro carr carx caxa cbac cbar cbax cbbc cbca cbcc cbcr cbia cbir cbox cbxa ccaa ccab ccac ccai ccar ccba ccbc ccca cccb cccc ccci ccic ccii ccir ccix ccob ccoc ccra ccrc ccri ccxi ciaa ciao ciar ciba cibc cibi cibo cica cicc cici cico cicr ciia ciii ciob cior cira cirb circ ciri ciro cirr cixi coai coax coba cobb cobi cobo coca coco coia coir coix coob cor- cora corb corc cori coro corr coxa crab crac crai crar crax crbc crca crcc crcr cria crib cric crob croc croo cror cxii cxix cxro cxxi cxxx iaaa iaac iaai iaba iaca iacc iacr iaia iara iarc ibac ibar ibca ibia ibox ibra ibrc ibri ibro icaa icab icac icai icao icar icbc icca iccb iccc icci icco iccr icoc icor icra icrc icrr iiac iica iiii iiio iioi iioo iira iirc ioba iobi ioci ioii ioio iooi iooo iora iori irac irai irao irar irca ircc ircx iri- iria iric irio irix irob iroc irra irrc irri ixia ixxi oaic oara obai obba obbo obia obix oboi obor obox obra obri obro ocab ocac ocbc occa occc occi ocra ocro ocrr oiba oici oiii oira ooaa ooba oobi oocr ooia oooo oora orab orac orai orao orar orba orbb orbi orbo orca orci orco ori- oria oric orio orix oro- oror orra orri orro oxa- oxi- oxia oxic oxo- oxox oxxo raab raba rabb rabi rabo rac- raca racc raci raco raia raic raii rair raix raob raoc rara rarb rari raro raxa raxi rbbb rbbr rcac rcbc rcbo rccb rccc rcic riaa riab riai rib- riba ribo rica ricc rico riia riri rixc rixo roab roar rob- roba robb robi robo roca rocc roco roia roio roir roob rooi roor roox rora rorc rori roro roxa roxo rrrr xaar xara xbai xbar xbox xbra xcii xcri xiao xibo xica xico xiii xixi xobc xoca xoco xoro xoxo xxii xxix xxxi xxxo xxxx