-vac a-ii a-iv aaaa aaab aaac aaai aaar aaav aaba aabb aabc aabi aaca aacb aacc aaci aacr aacv aaib aaic aaii aara aarc aari aava abaa abab abac abag abai abar abb- abba abbb abbi abbr abca abcb abcc abci abcr abia abib abic abig abir abra abrc abri abva acaa acab acac acag acai acar acba acca accc acci acga acgi acgr aci- acia acic acir acr- acra acrc acri acrr acrv acvv agac agag agai agar agav agba agca agcc agga aggi agia agib agic agig agii agir agra agri agva aiai aiba aica aicc aicr aiga aiia aiib aiic aiir aira airi aiva arab arac arag arai arar arba arbi arc- arca arci arga argb argi aria arib arig arii arr- arra arrc arrg arri arrr arva arvi avab avar avcc avgi avia avic aviv avra avri avva ba-i baaa baar baba babb babi babr bac- baca bacc baci baga bagg bagi baia baib baic baig bair bar- bara barb barc barg bari barr bava bavi bbbb bbci bbga bbrc bbrg bcaa bcar bcbc bcbg bcca bccc bcci bcia bcra bgca bgia biar biba bibb bibi bica bicc bicg bici biga bigb bigc bigg bira birb birg biri birr bivi brab brac brag brai brav brca brcb bria bric brig brrr brvi caaa caab caac caba cabg cabi cac- caca cacc caci cacr caga cagg cagi cagr caia caib caic cair cara carb carc cari carr cava cavi cbac cbar cbbc cbca cbcc cbcr cbga cbgb cbia cbir cbva cbvb cbvg cbvr ccaa ccab ccac ccag ccai ccar ccba ccbc ccca cccb cccc ccci cccv ccga ccgc ccic ccii ccir cciv ccra ccrc ccrg ccri ccvi cgac cgcc cgcg ciaa ciar ciba cibc cibi cica cicc cici cicr ciga cigi ciia ciii cira cirb circ ciri cirr civa civc crab crac crag crai crar crbc crca crcc crcr cria crib cric crig cvac cvar cvca cvcc cvii cvra cvrg cvrr gaar gaba gabb gabi gabr gaga gagg gagi gaia gaig gair gara garb garg gari garr garv gava gavi gbag gc-c gcaa gcbc gccc gcic gcii gciv gcrg gggg giaa giac giai giba gibb gica gicr giga gigg gigi gira girg giri girr giva grab grac grai grav grbr grcc gria grib gric grig grrr gvvv iaaa iaac iaai iaba iaca iacc iacr iaia iara iarc iava ibac ibar ibca ibga ibia ibra ibrc ibri icaa icab icac icag icai icar icbc icca iccb iccc icci iccr icga icgc icra icrc icrr igac igar igba igbc igcc igga igia igra igri iiac iica iiii iira iirc irac irai irar irca ircc ircg iri- iria iric irig irra irrc irri ivai ivar ivbv ivic ivig raab raag raba rabb rabi rac- raca racc raci racv raga ragg ragi raia raic raig raii rair rara rarb rari rava ravi rbbb rbbr rcac rcbc rccb rccc rcga rcgc rcic rcrg rcvr rgba rgbi riaa riab riai rib- riba rica ricc riga rigg rigi riia riri riva rrrr rv-c rvca vaar vaca vag- vaga vagg vagi vaia vaig vair vara varg vari varr vava vbcc vbrg vcbi vcci vgcc viag viar vic- vica vici viga vigr viii vira virb virc virg viri virr viva vivi vrac vrai vrav vrba vrci vria vvvv