a-ii aaaa aaab aaac aaai aaar aaas aaba aabb aabc aabi aaca aacb aacc aaci aacr aacs aaib aaic aaii aais aara aarc aari aars aasa aasc aasi aass abaa abab abac abag abai abar abas abb- abba abbb abbi abbr abbs abca abcb abcc abci abcr abcs abia abib abic abig abir abis abra abrc abri abrs abs- absa absi abss acaa acab acac acag acai acar acas acba acca accc acci accs acga acgi acgr acgs aci- acia acic acir acis acr- acra acrc acri acrr acrs acsa acsc acsi acss agac agag agai agar agas agba agca agcc agga aggi agia agib agic agig agii agir agis agra agri agsa agsg aiai aias aiba aica aicc aicr aics aiga aiia aiib aiic aiir aira airi airs aisa aisb aisg aisi aisr arab arac arag arai arar aras arba arbi arbs arc- arca arci arcs arga argb argi args aria arib arig arii aris arr- arra arrc arrg arri arrr arrs ars- arsa arsc arsi asaa asab asac asag asai asar asas asba asc- asca ascb ascc asci ascr asia asic asii asir asis asra asrc asrg asrs assa assc assi assr asss ba-i baaa baar baas baba babb babi babr babs bac- baca bacc baci bacs baga bagg bagi bags baia baib baic baig bair bais bar- bara barb barc barg bari barr bars basa basc basi bass bbas bbbb bbbs bbci bbga bbrc bbrg bcaa bcar bcas bcbc bcbg bcbs bcca bccc bcci bccs bcgs bcia bcis bcra bcrs bcsa bcsc bcss bgca bggs bgia biar bias biba bibb bibi bibs bica bicc bicg bici bics biga bigb bigc bigg bigs biis bira birb birg biri birr birs bis- bisa bisc biss brab brac brag brai bras brca brcb bria bric brig bris brrr brrs brsb brsr bsaa bsac bsas bsci bscs bsgs bsic bsra bssc caaa caab caac caas caba cabg cabi cabs cac- caca cacc caci cacr caga cagg cagi cagr cags caia caib caic cair cais cara carb carc cari carr cars casa casb casc casi casr cass cbac cbar cbbc cbbs cbca cbcc cbcr cbcs cbga cbgb cbia cbir cbsa cbsc cbsi ccaa ccab ccac ccag ccai ccar ccas ccba ccbc ccca cccb cccc ccci cccs ccga ccgc ccgs ccic ccii ccir ccis ccra ccrc ccrg ccri ccrs ccsa ccsg ccsi ccss cgac cgas cgcc cgcg cggs cgis cgsb cgss ciaa ciar cias ciba cibc cibi cica cicc cici cicr cics ciga cigi cigs ciia ciii ciis cira cirb circ ciri cirr cirs cis- cisa cisc cisr ciss crab crac crag crai crar cras crbc crca crcc crcr crgs cria crib cric crig cris crsa crss csaa csab csac csar csas cscb cscc csci cscr cscs csia csib csir csis csra csrc csrs cssa cssr gaar gaas gaba gabb gabi gabr gabs gaga gagg gagi gags gaia gaig gair gais gara garb garg gari garr gars gasa gasb gasc gasi gasr gass gbag gbas gbbs gc-c gcaa gcbc gccc gccs gcic gcii gcrg gcss gggg ggss giaa giac giai gias giba gibb gibs gica gicr giga gigg gigi gigs giis gira girg giri girr girs gisa giss grab grac grai gras grbr grcc gria grib gric grig gris grrr grrs grss gsab gsis iaaa iaac iaai iaas iaba iaca iacc iacr iacs iags iaia iais iara iarc iars iasa iasc iasi iasr ibac ibar ibas ibca ibcs ibga ibia ibis ibra ibrc ibri ibsa ibss icaa icab icac icag icai icar icas icbc icbs icca iccb iccc icci iccr iccs icga icgc icis icra icrc icrr icrs icsa icsb icsc icsi icsr icss igac igar igas igba igbc igcc igga iggs igia igis igra igri iiac iias iica iiii iiis iira iirc iirs iisc iisi iisr irac irai irar iras irca ircc ircg ircs irgs iri- iria iric irig iris irra irrc irri irrs irsa irsg is-a isac isai isar isas isba isca iscc isci iscr iscs isgc isia isic isis isra isrg isri issa issc issi issr isss raab raag raas raba rabb rabi rabs rac- raca racc raci racs raga ragg ragi rags raia raic raig raii rair rais rara rarb rari rars rasa rasc rasi rass rbbb rbbr rbbs rbis rbss rcac rcas rcbc rccb rccc rccs rcga rcgc rcic rcis rcrg rcsa rcsc rcsi rcss rgba rgbi riaa riab riai rias rib- riba ribs rica ricc rics riga rigg rigi rigs riia riis riri rirs risa risc risi riss rras rrrr rsaa rsai rsbi rscc rscs rsgb rsgc rsis rssa s-ib s-ic s-ii sa-c saab saac saag saar saas saba sabb sabc sabi sabr sabs saca sacc saci sacr sacs saga sagg sagi sags saia saic sair sais sara sarc sarg sari sarr sars sasa sasc sasi sass sbaa sbac sbai sbar sbas sbbs sbca sbcc sbcs sbia sbic sbig sbsa sbsi scaa scab scac scag scai scar scas scba scbi sccc sccs scgs sci- scia scic scir scis scr- scra scrc scri scrs scsa scsc scsi scsr sgaa sgac sgca sgcb sgcg sggg sggs sgic sgss siaa siab siac siag siai sias siba sibc sibi sibs sica sicc sici sics siga sigg sigi sigs sira sirc siri sirr sirs sisa sisc sisi siss sras srbc srcc srgb srib sris ssaa ssab ssac ssas ssbr ssca sscc ssci sscs ssgs ssis ssra ssrc ssrg ssri ssrs sssa sssb sssc sssi ssss