a-ii aaaa aaab aaac aaai aaar aaba aabb aabc aabi aaca aacb aacc aaci aacr aacu aaib aaic aaii aara aarc aari aaru abaa abab abac abag abai abar abau abb- abba abbb abbi abbr abca abcb abcc abci abcr abia abib abic abig abir abiu abra abrc abri abua abug acaa acab acac acag acai acar acba acca accc acci accu acga acgi acgr aci- acia acic acir acr- acra acrc acri acrr acu- acur agac agag agai agar agau agba agca agcc agga aggi aggu agia agib agic agig agii agir agra agri agua agui agur aiai aiba aica aicc aicr aiga aiia aiib aiic aiir aira airi aiui arab arac arag arai arar arau arba arbi arc- arca arci arga argb argi aria arib arig arii arr- arra arrc arrg arri arrr arru arua arub arug arui auaa auca auci auga augi aur- aura auri auug ba-i baaa baar baba babb babi babr babu bac- baca bacc baci baga bagg bagi baia baib baic baig bair bar- bara barb barc barg bari barr baru bau- baug baur bbau bbbb bbci bbga bbrc bbrg bcaa bcar bcbc bcbg bcca bccc bcci bcia bcra bcru bcuc bgca bgia biar biba bibb bibi bica bicc bicg bici biga bigb bigc bigg bigu bira birb birg biri birr biru brab brac brag brai brau brca brcb bria bric brig brrr bruc brug buar buba bubb bubi bubu buca bucc buci bucu buga bugg bugi buic buir buiu bur- bura burb burg buri burr buru caaa caab caac caba cabg cabi cabu cac- caca cacc caci cacr caga cagg cagi cagr caia caib caic cair caiu cara carb carc cari carr cauc cbac cbar cbbc cbca cbcc cbcr cbcu cbga cbgb cbia cbir ccaa ccab ccac ccag ccai ccar ccba ccbc ccca cccb cccc ccci cccu ccga ccgc ccic ccii ccir ccra ccrc ccrg ccri ccuc cgac cgcc cgcg ciaa ciar ciau ciba cibc cibi cica cicc cici cicr cicu ciga cigi cigu ciia ciii cira cirb circ ciri cirr ciuc crab crac crag crai crar crau crbc crbu crca crcc crcr cria crib cric crig criu crub crug cuau cub- cuba cubb cubi cuca cucc cuci cuga cui- cuir cura curb curi curr gaar gaba gabb gabi gabr gabu gaga gagg gagi gagu gaia gaig gair gaiu gara garb garg gari garr gaua gaub gaur gbag gc-c gcaa gcbc gccc gcic gcii gcrg gggg giaa giac giai giba gibb gica gicr giga gigg gigi gira girg giri girr giru giur grab grac grai grau grbr grcc gria grib gric grig grrr grua grub grug grui grur guaa guac guag guar guba gubb gubi gubu guca guci guga gugb gugg gugi gugu guia guib gura gurb gurg guri gurr guru iaaa iaac iaai iaba iaca iacc iacr iacu iaia iara iarc iaru ibac ibar ibca ibga ibia ibra ibrc ibri icaa icab icac icag icai icar icbc icca iccb iccc icci iccr iccu icga icgc icra icrc icrr icru icub igac igar igba igbc igcc igga igia igra igri igua iiac iica iiii iira iirc iiuc irac irai irar irca ircc ircg ircu iri- iria iric irig irra irrc irri iucc iuiu iura raab raag raba rabb rabi rabu rac- raca racc raci racu raga ragg ragi ragu raia raic raig raii rair raiu rara rarb rari raua raub rauc rbbb rbbr rcac rcbc rccb rccc rcga rcgc rcic rcrg rgba rgbi riaa riab riai riau rib- riba ribu rica ricc riga rigg rigi rigu riia riri rrrr ruag ruba rubb rubi rubu ruca ruci ruga rugg rugi rura rurc ruri ruru uabc uaca uair uarc uaru uaua ubac ubar ubba ubbi ubic ubii ubir ubra ucai ucar ucbc ucca ucci ucrc ucua ugab ugar ugcc ugcg ugia ugra ugri ugur uguu uica uira uirr urac urai urau urba urbi urca urci urga urgi urgu uria urib uric uriu urra urri urur uuri uuuu