-ase a-be aaaa aaab aaae aaar aaas aaba aabb aaea aaes aara aare aars aasa aase aass abaa abab abae abar abas abb- abba abbb abbe abbr abbs abee aber abes abra abrs abs- absa abse abss aeas aebs aeer aer- aera aers aess arab arae arar aras arba arbe arbs area aree ares arr- arra arre arrr arrs ars- arsa arse asaa asab asae asar asas asba asea asee aser ases asra asrs assa asse assr asss baaa baar baas baba babb babe babr babs baer baes bar- bara barb bare barr bars basa base bass bbas bbbb bbbs bbeb bear beas beba bebb bebe beeb beer bees bera bere berr bers bes- besa bese bess brab brae bras brea breb bree brer bres brrr brrs brsb brsr bsaa bsas bsea bseb bsee bser bses bsra bsse eaba eara earb eare ears easa ease ebba ebbr ebbs eber ebes ebsa eeea eeee eees eera eers eese eras erba erbb erbe ereb erer eres erra erre errs ersa erse esab esar esas esba esbs esea esee eser eses esra essa esse raab raas raba rabb rabe rabs raer raes rara rarb rare rars rasa rase rass rbbb rbbr rbbs rbss rea- reae rear reas reba rebb rebe rebs reeb rees rera rere rers resa rese ress rras rrrr rsaa rsee rsre rssa saab saae saar saas saba sabb sabe sabr sabs saeb saer saes sara sare sarr sars sasa sase sass sbaa sbar sbas sbbs sber sbsa sbse se-e se-s seaa seab sear seas seba sebe sebs seea seeb seer sees sera serb sere serr sers sesa sese sess sras sreb sres ssaa ssab ssas ssbr ssee sses ssra ssrs sssa sssb ssss