a-ha a-ii aaaa aaab aaac aaah aaai aaar aaba aabb aabc aabh aabi aaca aacb aacc aach aaci aacr aaha aaib aaic aaii aara aarc aari abaa abab abac abai abar abb- abba abbb abbi abbr abca abcb abcc abch abci abcr abha abhi abhr abia abib abic abir abra abrc abri acaa acab acac acai acar acba acca accc acch acci acha achh achi achr aci- acia acic acir acr- acra acrc acri acrr ahab ahac ahah ahai ahar ahha ahir ahra ahrc ahrr aiai aiba aica aicc aich aicr aiha aiia aiib aiic aiir aira airh airi arab arac arah arai arar arba arbh arbi arc- arca arch arci arh- aria arib arii arr- arra arrc arrh arri arrr ba-i baaa baah baar baba babb babi babr bac- baca bacc bach baci baha bahi bahr baia baib baic bair bar- bara barb barc barh bari barr bbbb bbch bbci bbrc bcaa bcar bcbc bcca bccc bcci bcia bcra bhai bhar bhca bhcc bhir bhra biar biba bibb bibi bica bicc bich bici biha bihi bira birb biri birr brab brac brah brai brca brcb bria bric brih brrr caaa caab caac caah caba cabi cac- caca cacc cach caci cacr caha caia caib caic cair cara carb carc cari carr cbac cbar cbbc cbca cbcc cbcr cbha cbia cbir cbrh ccaa ccab ccac ccai ccar ccba ccbc ccca cccb cccc ccci ccha cchr ccic ccii ccir ccra ccrc ccri chaa chab chac chah chai char chca chch chci chha chia chib chic chih chir chra chrb chrc chrr ciaa ciar ciba cibc cibi cica cicc cich cici cicr cihr ciia ciii cira cirb circ cirh ciri cirr crab crac crai crar crbc crca crcc crcr cria crib cric h-ii haab haar haba habi haha hair hara harc harh hari harr hbar hbic hcbc hcca hccb hccc hcch hchi hhaa hhhh hi-c hiaa hiab hiar hiba hibi hicc hich hihc hihi hira hiri hrac hrib hrrc iaaa iaac iaai iaba iaca iacc iacr iahc iaia iara iarc ibac ibar ibca ibia ibra ibrc ibri icaa icab icac icai icar icbc icca iccb iccc icci iccr ichc ichi ichr icra icrc icrr ihab ihba ihcc ihra ihrc iiac iica iiii iira iirc irac irai irar irca ircc iri- iria iric irra irrc irri raab raba rabb rabi rac- raca racc rach raci raha rahi rahr raia raic raii rair rara rarb rari rbbb rbbr rcac rcbc rccb rccc rchb rcic rhib riaa riab riah riai rib- riba rica ricc rich riha riia riri rrah rrrr