a-ii aaaa aaab aaac aaai aaap aaar aaba aabb aabc aabi aabp aaca aacb aacc aaci aacp aacr aacu aaib aaic aaii aapa aapc aapi aara aarc aari aarp aaru aaup abaa abab abac abai abap abar abau abb- abba abbb abbi abbr abca abcb abcc abci abcp abcr abia abib abic abir abiu abpa abpc abpi abpp abpr abra abrc abri abua acaa acab acac acai acap acar acba acca accc acci accp accu aci- acia acic acip acir acpa acpi acpr acpu acr- acra acrc acri acrr acu- acup acur aiai aiba aica aicc aicp aicr aiia aiib aiic aiir aipa aipi aira airi airp aiui apac apai apap apar apba apbr apca apcb apcc apcr api- apia apic apip appa appc appr appu apra aprc apri apua apuc apup arab arac arai arap arar arau arba arbi arc- arca arci aria arib arii arip arpa arpi arpu arr- arra arrc arri arrr arru arua arub arui arup auaa auca auci aucp aupc aur- aura auri ba-i baaa baar baba babb babi babr babu bac- baca bacc baci baia baib baic bair bapa bapc bapi bapp bapu bar- bara barb barc bari barr baru bau- baur bbau bbbb bbci bbpr bbrc bcaa bcap bcar bcbc bcbp bcca bccc bcci bcia bcpp bcra bcru bcuc bcup biap biar biba bibb bibi bica bicc bici bipa bipp bipu bira birb biri birr biru bpai bpcp bprc brab brac brai brau brca brcb bria bric brrr bruc brup buar buba bubb bubi bubu buca bucc buci bucu buic buir buiu bupa bupc bur- bura burb buri burp burr buru caaa caab caac caap caba cabi cabu cac- caca cacc caci cacr caia caib caic caip cair caiu capa capb capc capi capp capu cara carb carc cari carp carr cauc caup cbac cbar cbbc cbca cbcc cbcp cbcr cbcu cbia cbir cbpc cbpp ccaa ccab ccac ccai ccap ccar ccba ccbc ccca cccb cccc ccci cccp cccu ccic ccii ccip ccir ccpa ccpp ccpr ccra ccrc ccri ccrp ccuc ccup ciaa ciar ciau ciba cibc cibi cica cicc cici cicr cicu ciia ciii cipa cipp cira cirb circ ciri cirr ciuc ciup cpaa cpac cpap cpbc cpca cpcu cpia cpic cppa cpri crab crac crai crap crar crau crbc crbu crca crcc crcr cria crib cric crip criu crpc crub crup cuau cub- cuba cubb cubi cuca cucc cuci cui- cuir cupp cupr cura curb curi curr iaaa iaac iaai iaap iaba iaca iacc iacp iacr iacu iaia iapa iapp iapu iara iarc iaru ibac ibar ibca ibia ibra ibrc ibri icaa icab icac icai icap icar icbc icbp icca iccb iccc icci iccp iccr iccu icpa icpc icra icrc icrr icru icub icup iiac iica iiii iipa iira iirc iiuc ipac ipba ipca ipcc ippa ippc ippr ipri ipur irac irai irap irar irbp irca ircc ircu iri- iria iric irip irpa irpc irra irrc irri iucc iuiu iupa iupp iura paap paar paba pabu paca paci pacu paia paib paip pair papa papb papi papp papr par- para parc pari parp parr paru paua paup paur pbac pbar pbcc pbpa pcaa pcap pcba pcbc pcca pccc pcia pcip pcpb pcpp pcra pcrc piai piau pibb pibi pica picc pici picr picu piia piip pipa pipi pipp pira pirc piri pirr piru ppac ppap ppar ppcc ppci ppib ppic pppa pppp pprc ppru ppur prai prar prau prbc prca prcc prcp pri- pria prii prri pruu puar pubu puca puir puiu pupa pupi pupu pur- pura purb puri purp purr puru puuc raab raba rabb rabi rabu rac- raca racc raci racu raia raic raii raip rair raiu rapa rapc rapi rapp rara rarb rari raua raub rauc raup rbbb rbbr rcac rcbc rccb rccc rcic rcpi riaa riab riai riau rib- riba ribu rica ricc riia ripa ripi ripp ripr riri rpca rpii rrrr ruba rubb rubi rubp rubu ruca ruci rupa rupp rura rurc ruri rurp ruru u-rp uabc uaca uair uarc uaru uaua ubac ubar ubba ubbi ubic ubii ubir ubpc ubra ucai ucar ucbc ucca ucci uccp ucpa ucpb ucrc ucua uica uipi uira uirr upac upar upca upci upic uppa uppc uppp uppu upra upri upup urac urai urap urau urba urbi urca urci uria urib uric uriu urra urri urup urur uucp uuri uuuu