-er a-a a-b aaa aab aad aae aaf aar aas ab- aba abb abd abe abf abr abs ad- ada adb add ade adf adr ads aea aeb aed aee aef aer aes af- afa afb afd afe aff afr afs ar- ara arb ard are arf arr ars as- asa asb asd ase asf asr ass baa bab bad bae baf bar bas bba bbb bbd bbe bbf bbr bbs bda bdb bdd bde bdf bdr bds be- bea beb bed bee bef ber bes bfa bfb bfd bfe bff bfr bfs bra brb brd bre brf brr brs bsa bsb bsd bse bsf bsr bss daa dab dad dae daf dar das dba dbb dbd dbe dbf dbr dbs dda ddb ddd dde ddf ddr dds de- dea deb ded dee def der des dfa dfb dfd dfe dff dfr dfs dra drb drd dre drr drs dsa dsb dsd dse dsf dsr dss eaa eab ead eae eaf ear eas eba ebb ebd ebe ebf ebr ebs ed- eda edb edd ede edf edr eds eea eeb eed eee eef eer ees ef- efa efb efd efe eff efr efs era erb erd ere erf err ers es- esa esb esd ese esf esr ess faa fab fad fae faf far fas fba fbb fbd fbe fbf fbr fbs fda fdb fdd fde fdf fdr fds fea feb fed fee fef fer fes ffa ffd ffe fff ffr ffs fra frb frd fre frf frr frs fsa fsb fsd fse fsf fsr fss ra- raa rab rad rae raf rar ras rba rbb rbd rbe rbf rbr rbs rda rdb rdd rde rdf rdr rds re- rea reb red ree ref rer res rfa rfb rfd rfe rff rfr rfs rra rrb rrd rrf rrr rrs rsa rsb rsd rse rsf rsr rss saa sab sad sae saf sar sas sba sbb sbd sbe sbf sbr sbs sda sdb sdd sde sdf sdr sds se- sea seb sed see sef ser ses sfa sfb sfd sfe sff sfr sfs sr- sra srb srd sre srf srr srs ss- ssa ssb ssd sse ssf ssr sss

-ase a-be aaaa aaab aaad aaae aaaf aaar aaas aaba aabb aabd aada aade aads aaea aaes aafa aafb aafd aaff aara aard aare aars aasa aasd aase aasf aass abaa abab abad abae abaf abar abas abb- abba abbb abbe abbr abbs abda abed abee aber abes abff abra abrs abs- absa absd abse absf abss adaa adab adad adae adar adas adba adda addd adde addr adds adea adeb adee ader ades adfa adfs adra adre adrs adsa adsr adss aeaf aeas aebs aede aeer aer- aera aerd aers aesd aess afaa afad afar afbs afdb afee afer afes affa affs afr- afra afre afrs afsa afsb arab arad arae araf arar aras arba arbe arbs arda arde ardf ards area ared aree aref ares arfa arfb arff arfs arr- arra arre arrr arrs ars- arsa arsd arse asaa asab asad asae asaf asar asas asba asda asde asdf asds asea asee aser ases asfa asra asrs assa assd asse assr asss baaa baad baaf baar baas baba babb babe babr babs bada badb badd bade badr bads baed baer baes baff bar- bara barb bard bare barf barr bars basa base basf bass bbad bbas bbbb bbbs bbdd bbeb bd-r bdes bdsd bead beaf bear beas beba bebb bebe beda bede beds beeb beed beef beer bees befa befe beff bera berd bere berr bers bes- besa bese bess bfas bffs bfsr brab brad brae braf bras brda brds brea breb bred bree bref brer bres brrr brrs brsb brsr bsaa bsas bsbd bsea bseb bsed bsee bser bses bsfa bsff bsfs bsra bsrd bssd bsse daab daad daae daar daas daba dabb dabs dada dade dads daeb daer dafa dafe daff dafs dara darb dard dare darf darr dars dasa dasb dasd dase dass dbar dbas dbfs dbrs dbsa dbss dddd ddes ddre ddss dead deae deaf dear deas deba debe debs deda dedd dede deeb deed deef deer dees defe deff defs der- dera derb dere derf derr ders des- desa dese dess dfaf dfas dfds dfer dffa dfrf draa drab drad draf drar dras drba drda drea dred dree dref dres drra drrs drsa dsba dsda dsdr dsea dsfa dsrr dssa eaaf eaba eada eadb eadd eads eafb eara earb eard eare ears easa ease ebba ebbr ebbs ebed eber ebes ebsa edad edar edas edda edde edds ede- edea eder edes edfa edra edsa edss eede eeea eeee eees eefa eefe eera eers eese efab efas efbr efda efes effa effs efsa erad eraf eras erba erbb erbe erda erde erdf erds ereb ered erer eres erfs erra erre errs ersa erse esab esad esar esas esba esbs esda esds esea esee eser eses esfs esra esrd essa esse faaa faad faas faba fabd fabe fabs fada fadd fade fads faeb faes fafa fafe faff fara farb fard fare farr fars fasa fasd fase fass fbar fbrs fbsd fead feaf fear feas feba febs feda fede feds feeb feed feer fees fefe feff fera ferb ferd fere ferr fers fesa fese fess ffar ffee ffff ffrr ffsa ffss frab frad frae fras frea fred free fres frsb fsas fsra fssa fssf raab raad raaf raas raba rabb rabe rabs rada radd rade radr rads raed raef raer raes rafa rafe raff rara rarb rare rarf rars rasa rasd rase rass rbaf rbbb rbbr rbbs rbds rbsd rbss rdas rder rdfa rea- read reae reaf rear reas reba rebb rebe rebs reda redd rede redr reds reeb reed reef rees refd refe reff refr refs rera rerd rere rers resa rese ress rfae rfds rfef rrad rras rred rrrr rsaa rsaf rsdd rsds rsee rsre rssa saab saad saae saaf saar saas saba sabb sabe sabr sabs sada sadb sadd sade sadr sads saeb saer saes safa safb safe saff safr sara sard sare sarf sarr