a-ha aaaa aaab aaac aaah aaal aaas aaba aabb aabc aabh aabl aaca aacb aacc aach aacl aaco aacs aaha aahl aahs aala aalc aall aalo aals aaoo aasa aasc aass abaa abab abac abal abas abb- abba abbb abbo abbs abca abcb abcc abch abcl abcs abha abho abhs abla ablo abls aboa abob aboh abol aboo abos abs- absa absl abss acaa acab acac acas acba acbl acca accc acch acco accs acha achh achl acho achs acla aclc acls acoa acoh acol acos acsa acsc acsl acss ahab ahac ahah ahal ahas ahha ahhs ahla ahoa ahsa ahso ahss alaa alac alal alao alas alb- alba albc albo albs alca alcc alco alcs alha alhs all- alla allh alll allo alls aloa aloc aloh alol aloo alos alsa alsc also aoah aoba aoca aocs aola aoss asaa asab asac asah asal asao asas asba asbo asc- asca ascb ascc asch ascl asco asha ashs asla aslo asob asoc asos assa assc assh assl asso asss baaa baah baal baas baba babb babo babs bac- baca bacc bach baco bacs baha bahl baho bahs bala balc ball balo bals baoh baol baos basa basc bash baso bass bbas bbbb bbbs bbch bbhs bblb bbls bcaa bcas bcbc bcbs bcca bccc bccl bccs bchs bcos bcsa bcsc bcsl bcss bhao bhca bhcc bhhs blaa blab blac blah blas blhs blls blob bloc bloo blss boab boac boal boas boba bobb bobo bobs boca boch boco bocs boha bohl boho bohs bola boll bolo bols boob booc booh bool boos bosa bosc bosh boso boss bsaa bsac bsas bscs bshs bslc bsos bssc c-bo caaa caab caac caah caal caas caba cabo cabs cac- caca cacc cach caco caha cahl cahs cala calc call calo cals caol caos casa casb casc cash casl caso cass cbac cbal cbbc cbbs cbca cbcc cbcl cbcs cbha cbhl cbhs cblb cblc cbol cbsa cbsc ccaa ccab ccac ccas ccba ccbc ccca cccb cccc cccl cccs ccha cchl cchs ccla cclc ccls ccob ccoc ccsa ccsl ccss chaa chab chac chah chal chao chas chca chch chcs chha chhs chlc choc choh chol choo chos chsc chsh clab clas clhs clob cloo clos clsa clsc coal coas coba cobb cobh cobo cobs coca coch coco coha coho cohs col- cola colb coll colo cols coob cooh cool coos cosa cosc cosh cosl coso coss csaa csab csac csao csas cscb cscc csch cscl csco cscs cshl cshs csla csob csos cssa haab haal haas haba habo habs haco hacs haha haho hahs hal- hala halb hall halo hals hasa hasc hash hass hbbs hbhs hboc hbos hbss hcbc hcbs hcca hccb hccc hcch hccs hchs hcsa hcsc hcso hcss hhaa hhcl hhhh hhhs hhla hlah hlas hlhs hlss hoac hoas hoba hobo hobs hoca hoch hocs hoha hohl hoho hol- hola holb holc holh holl holo hols hool hoos hosa hosh hoss hsac hsas hsbc hscc hshs hsls hsob laaa laac laal laas laba labo labs laca lacc lach lacl laco lacs laha laho lahs lala lall lalo laos lasa lash laso lass lbcc lbhs lbos lbsc lcac lcbc lcca lccc lccs lchc lchs lcls lcsc lhas lhbs lhhh lhhs lhsa lhss llao llbs llcc llcs llhs lllc llll lloa lloc lloo loac loas lob- loba lobb lobh lobo lobs loca locc loch loco locs loha loho lohs lola loll lolo lols loob looc lool loos losa losc losh loso loss lscb lsco lscs lshs lsla lsoh lssa lsso oahs oall oasc oasl oass obal obas obba obbo obhs obla obls obol obos obss ocab ocac ocal ocas ocbc occa occc ocha ochs oclc ocos ocsa ohal ohba ohcc ohho ohhs ohob ohoh ohos ohso ohss olac olah olas olba olbo olca olcc olla ollo olos olsh ooaa ooba ooha ooho oohs oola oolo oooh oooo ooos oosa osas osba osca oscc oscl osco osha oshc osho oshs osla oslo osoo osos ossa ossb osso s-os sa-c saab saac saah saal saas saba sabb sabc sabo sabs saca sacc saco sacs saha sahl saho sahs sala salc salh sall salo sals saol saos sasa sasc sash sasl saso sass sbaa sbac sbas sbbs sbca sbcc sbcs sbhc sbhs sbsa scaa scab scac scal scas scba sccc sccl sccs sch- scha schh schl scho schs scl- sclc scls scob scoh scol scoo scsa scsc scsh scsl scso shab shac shah shal shao shas shbs shca shcc shha shhh shhs shl- shls shoa shoo shos shsc slaa slab slac slas slcc slhs slob sloc sloh sloo slos slsa slsc soal soas soba sobo sobs soca soch socl soco socs soha sohh sohl soho sohs sola solh soll solo sols sool soos sosa sosh soso soss ssaa ssab ssac ssao ssas ssca sscc sscs sshl sshs ssla sslc ssoc sssa sssb sssc sssh ssss