-ase a-be aaaa aaab aaae aaaf aaar aaas aaba aabb aaea aaes aafa aafb aaff aara aare aars aasa aase aasf aass abaa abab abae abaf abar abas abb- abba abbb abbe abbr abbs abee aber abes abff abra abrs abs- absa abse absf abss aeaf aeas aebs aeer aer- aera aers aess afaa afar afbs afee afer afes affa affs afr- afra afre afrs afsa afsb arab arae araf arar aras arba arbe arbs area aree aref ares arfa arfb arff arfs arr- arra arre arrr arrs ars- arsa arse asaa asab asae asaf asar asas asba asea asee aser ases asfa asra asrs assa asse assr asss baaa baaf baar baas baba babb babe babr babs baer baes baff bar- bara barb bare barf barr bars basa base basf bass bbas bbbb bbbs bbeb beaf bear beas beba bebb bebe beeb beef beer bees befa befe beff bera bere berr bers bes- besa bese bess bfas bffs bfsr brab brae braf bras brea breb bree bref brer bres brrr brrs brsb brsr bsaa bsas bsea bseb bsee bser bses bsfa bsff bsfs bsra bsse eaaf eaba eafb eara earb eare ears easa ease ebba ebbr ebbs eber ebes ebsa eeea eeee eees eefa eefe eera eers eese efab efas efbr efes effa effs efsa eraf eras erba erbb erbe ereb erer eres erfs erra erre errs ersa erse esab esar esas esba esbs esea esee eser eses esfs esra essa esse faaa faas faba fabe fabs faeb faes fafa fafe faff fara farb fare farr fars fasa fase fass fbar fbrs feaf fear feas feba febs feeb feer fees fefe feff fera ferb fere ferr fers fesa fese fess ffar ffee ffff ffrr ffsa ffss frab frae fras frea free fres frsb fsas fsra fssa fssf raab raaf raas raba rabb rabe rabs raef raer raes rafa rafe raff rara rarb rare rarf rars rasa rase rass rbaf rbbb rbbr rbbs rbss rea- reae reaf rear reas reba rebb rebe rebs reeb reef rees refe reff refr refs rera rere rers resa rese ress rfae rfef rras rrrr rsaa rsaf rsee rsre rssa saab saae saaf saar saas saba sabb sabe sabr sabs saeb saer saes safa safb safe saff safr sara sare sarf sarr sars sasa sase sasf sass sbaa sbar sbas sbbs sbef sber sbsa sbse se-e se-f se-s seaa seab seaf sear seas seba sebe sebs seea seeb seef seer sees sefa seff sera serb sere serf serr sers sesa sese sess sfar sfas sfba sfer sfra sfss sraf sras sreb sres ssaa ssab ssas ssbr ssee sses ssra ssrs sssa sssb sssf ssss