-er a-a a-b a-c aaa aab aac aad aae aar aas ab- aba abb abc abd abe abr abs ac- aca acb acc acd ace acr acs ad- ada adb adc add ade adr ads aea aeb aec aed aee aer aes ar- ara arb arc ard are arr ars as- asa asb asc asd ase asr ass baa bab bac bad bae bar bas bba bbb bbc bbd bbe bbr bbs bca bcb bcc bcd bce bcr bcs bda bdb bdc bdd bde bdr bds be- bea beb bec bed bee ber bes bra brb brd bre brr brs bsa bsb bsc bsd bse bsr bss c-- caa cab cac cad cae car cas cba cbb cbc cbd cbe cbr cbs cca ccb ccc ccd cce ccr ccs cda cdb cdc cdd cde cdr cds ce- cea ceb cec ced cee cer ces cra crb crc crd cre crr crs csa csb csc csd cse csr css daa dab dac dad dae dar das dba dbb dbc dbd dbe dbr dbs dca dcb dcc dcd dce dcr dcs dda ddb ddc ddd dde ddr dds de- dea deb dec ded dee der des dra drb drc drd dre drr drs dsa dsb dsc dsd dse dsr dss eaa eab eac ead eae ear eas eba ebb ebc ebd ebe ebr ebs ec- eca ecb ecc ecd ece ecr ecs ed- eda edb edc edd ede edr eds eea eeb eec eed eee eer ees era erb erc erd ere err ers es- esa esb esc esd ese esr ess ra- raa rab rac rad rae rar ras rba rbb rbc rbd rbe rbr rbs rca rcb rcc rcd rce rcr rcs rda rdb rdc rdd rde rdr rds re- rea reb rec red ree rer res rra rrb rrc rrd rrr rrs rsa rsb rsc rsd rse rsr rss saa sab sac sad sae sar sas sba sbb sbc sbd sbe sbr sbs sca scb scc scd sce scr scs sda sdb sdc sdd sde sdr sds se- sea seb sec sed see ser ses sr- sra srb src srd sre srr srs ss- ssa ssb ssc ssd sse ssr sss

-ase a-be aaaa aaab aaac aaad aaae aaar aaas aaba aabb aabc aabd aaca aacb aacc aacd aace aacr aacs aada aadc aade aads aaea aaec aaes aara aarc aard aare aars aasa aasc aasd aase aass abaa abab abac abad abae abar abas abb- abba abbb abbe abbr abbs abca abcb abcc abcd abcr abcs abda abec abed abee aber abes abra abrc abrs abs- absa absd abse abss acaa acab acac acad acae acar acas acba acca accc accd acce accs acda acdb acdc acde acds ace- acea acec aced acer aces acr- acra acrc acre acrr acrs acsa acsc acsd acse acss adaa adab adac adad adae adar adas adba adbc adcc adcs adda addc addd adde addr adds adea adeb adee ader ades adra adre adrs adsa adsr adss aeac aeas aebs aecb aede aeer aer- aera aerc aerd aers aesc aesd aess arab arac arad arae arar aras arba arbe arbs arc- arca arce arcs arda ardc arde ards area arec ared aree ares arr- arra arrc arre arrr arrs ars- arsa arsc arsd arse asaa asab asac asad asae asar asas asba asc- asca ascb ascc asce ascr asda asde asds asea asec asee aser ases asra asrc asrs assa assc assd asse assr asss baaa baad baar baas baba babb babe babr babs bac- baca bacc bace bacs bada badb badd bade badr bads baed baer baes bar- bara barb barc bard bare barr bars basa basc base bass bbad bbas bbbb bbbs bbdd bbeb bbrc bcaa bcar bcas bcbc bcbs bcca bccc bccs bcda bcde bcds bcec bcer bces bcra bcrs bcsa bcsc bcss bd-r bdbc bddc bdes bdsd bead bear beas beba bebb bebe beca becs beda bede beds beeb beed beer bees bera berc berd bere berr bers bes- besa bese bess brab brac brad brae bras brca brcb brce brda brds brea breb brec bred bree brer bres brrr brrs brsb brsr bsaa bsac bsas bsbd bscs bsea bseb bsec bsed bsee bser bses bsra bsrd bssc bssd bsse c-cd caaa caab caac caas caba cabe cabs cac- caca cacc cace cacr cada cadc cadd cade cadr cads caec caer caes cara carb carc card care carr cars casa casb casc casd case casr cass cbac cbar cbbc cbbs cbca cbcc cbce cbcr cbcs cbdb cbdc cbds cbea cbec cbee cber cbrd cbre cbsa cbsc cbse ccaa ccab ccac ccad ccar ccas ccba ccbc ccca cccb cccc cccs ccdc ccdr ccds cced ccee ccra ccrc ccre ccrs ccsa ccsd ccss cd-e cd-r cdaa cdac cdad cdba cdcs cdda cddb cddr cdec cder cdes cdre cdrs cdss ceac cead cear ceas ceba cebs cec- ceca cece cecs ceda cedd cede ceeb ceec cees cer- cera cerc cerd cere cers cesa cesc cese cesr cess crab crac crar cras crbc crca crcc crce crcr crda crdc cre- crea creb crec cred cree cres crsa crss csaa csab csac csar csas cscb cscc cscd csce cscr cscs csda csdb csdr csea csec csee cser csra csrc csrd csrs cssa cssd csse cssr daab daad daae daar daas daba dabb dabs daca dace dacs dada dade dads daeb daer dara darb darc dard dare darr dars dasa dasb dasc dasd dase dass dbar dbas dbcc dbcs dbrs dbsa dbss dcas dcbc dcca dccb dccc dccs dcdb dcds dcra dcsc dcss dddd ddes ddrc ddre ddss deac dead deae dear deas deba debe debs dec- deca decc decd dece decs deda dedd dede deeb deed deer dees der- dera derb derc dere derr ders des- desa desc dese dess draa drab drac drad drar dras drba drbc drca drda drea dred dree dres drra drrs drsa dsac dsba dsbc dscc dscr dscs dsda dsdr dsea dsrc dsrr dssa dssc eaba eaca eacc eada eadb eadd eads eaec eara earb eard eare ears