-er a-a a-b a-c aaa aab aac aae aaf aar ab- aba abb abc abe abf abr ac- aca acb acc ace acf acr aea aeb aec aee aef aer af- afa afb afc afe aff afr ar- ara arb arc are arf arr baa bab bac bae baf bar bba bbb bbc bbe bbf bbr bca bcb bcc bce bcf bcr be- bea beb bec bee bef ber bfa bfb bfc bfe bff bfr bra brb bre brf brr c-- caa cab cac cae caf car cba cbb cbc cbe cbf cbr cca ccb ccc cce ccf ccr ce- cea ceb cec cee cef cer cfa cfb cfc cfe cff cfr cra crb crc cre crf crr eaa eab eac eae eaf ear eba ebb ebc ebe ebf ebr ec- eca ecb ecc ece ecf ecr eea eeb eec eee eef eer ef- efa efb efc efe eff efr era erb erc ere erf err faa fab fac fae faf far fba fbb fbc fbe fbf fbr fca fcb fcc fce fcf fcr fea feb fec fee fef fer ffa ffc ffe fff ffr fra frb frc fre frf frr ra- raa rab rac rae raf rar rba rbb rbc rbe rbf rbr rca rcb rcc rce rcf rcr re- rea reb rec ree ref rer rfa rfb rfc rfe rff rfr rra rrb rrc rrf rrr

a-be aaaa aaab aaac aaae aaaf aaar aaba aabb aabc aaca aacb aacc aace aacf aacr aaea aaec aafa aafb aafc aaff aara aarc aare abaa abab abac abae abaf abar abb- abba abbb abbe abbr abca abcb abcc abcf abcr abec abee aber abff abra abrc acaa acab acac acae acar acba acca accc acce accf ace- acea acec acer acfc acfe acr- acra acrc acre acrr aeac aeaf aecb aeer aer- aera aerc afaa afar afca afcb afcc afee afer affa affc afr- afra afrc afre arab arac arae araf arar arba arbe arc- arca arce area arec aree aref arfa arfb arfc arff arr- arra arrc arre arrr baaa baaf baar baba babb babe babr bac- baca bacc bace baer bafc baff bar- bara barb barc bare barf barr bbbb bbeb bbfc bbrc bcaa bcar bcbc bcca bccc bcec bcer bcfc bcra beaf bear beba bebb bebe beca beeb beef beer befa befe beff bera berc bere berr bfca brab brac brae braf brca brcb brce brea breb brec bree bref brer brfc brrr caaa caab caac caaf caba cabe cabf cac- caca cacc cace cacr caec caer cafa cafb cafc cafe caff cara carb carc care carf carr cbac cbar cbbc cbca cbcc cbce cbcr cbea cbec cbee cbef cber cbfb cbfc cbre ccaa ccab ccac ccaf ccar ccba ccbc ccca cccb cccc cccf ccee ccfa ccfc ccff ccra ccrc ccre ccrf ceac cear ceba cec- ceca cece ceeb ceec cef- cefa cefc cer- cera cerc cere cerf cfaa cfab cfac cfae cfar cfbc cfbr cfca cfcb cfcf cffb cffr cfra cfrb cfre crab crac craf crar crbc crca crcc crce crcr cre- crea creb crec cree crfc eaaf eaba eaca eacc eaec eafb eara earb eare ebac ebba ebbc ebbr ebcc eber ebfc ecaa ecac ecar ecbc ecbe ecca eccb eccc ecce ecef ecfa ecfc ecfr ecra ecrc ecrf ecrr eeca eeea eeee eefa eefe eera eerc efab efbr efca effa eraf erba erbb erbe erca ercc erce ereb erec erer erfc erra errc erre faaa faac faba fabe faca facc face faeb fafa fafc fafe faff fara farb farc fare farr fbar fcab fcar fcba fcca fccf fcra feaf fear feba fece feeb feer fefc fefe feff fera ferb ferc fere ferr ffar ffcc ffee ffff ffrr frab frac frae frbc frcc frea free frfc raab raaf raba rabb rabe rac- raca racc race raec raef raer rafa rafc rafe raff rara rarb rare rarf rbaf rbbb rbbr rcac rcaf rcbc rccb rccc rcfc rea- reac reae reaf rear reba rebb rebe reca recc rece recr reeb reef refe reff refr rera rere rfae rfef rffc rrfc rrrr

-aaa- aaace aaaee aaarc aabaa aabba aabra aacbc aaeaf abaab ababa ababe abaca abaer abara abare abbac abbar abccc abear abeba abebe abece abeer abera abere aberr abfab abrac abrar acaca acacb acar- acara acare accra aceae acera acerb acrab acrea acree aeaea aebbe aface afara afare afcea afcec afear afefe afere affer afree ar-ab ara-c arab- araba arabe araca arace araea arara arare arbab arbar arbee arber arbre arcae arcee areae arear areca areef arere arfe arrea baabe babar babec babee baber babra bacab bacar bacca bacea baffa bafra baraa barab barac barar barba barbe barca barce barea barer barff barra barre bbbee bbear be-er beafe beara beare bebar beber bebra becca beeac beebe beffe berar berba berbe berca berea berec berra berre bface braca bracc brace braff breba brece breef breer brera brere brrar brrrr c-a-c c-raf ca-ca caaba caare caber cabra cabre caec- caeca caere cafer caffa caffe caraa carab carac carb- carea carer carfe carra carre cbeff ccccc ceace ceara ceare cearr cebec ceber ceeac ceere cerae cerc- cerca cerce cerea cerec cerer cerre craba crabb crace craer crare crear crebe crece creer eafre earar ebara ebber ecara ecare eecca eeeee efare efere effer effra erace erbaa erbar erbbe erber ercea ereac erear erere fabae faber fabra fabre facea facer facra farab farbe farce fareb farer farfa farre fcaca feare febre feere ferae ferce ferr- ferra ferre fface fraba fraca frear freea freer frera frere ra-ra raaba raabe raaff rabab rabac rabba rabbe race- racer raeff rafar rafer raffa raffe rarae raraf rareb raree rarer rccar reace reafe rear- rebab rebar rebbe rebec reber rebra recca recce recea reece reefa reefe reere refar refer reffe rere- reree

aaaaba abacab abaera abarca abbace abeere aberra abrera accara acerae acerba acerra acraea aeacea aerfer afeefa affear affeer affere affre araafa aracar arbace arbaer arbeca arbra areare arfara arfarf arraba arrace arrear arreca arrere baabaa baabar bababe babarc babare babbar bacaba bacare baccar baccer baraca barace barara