reae real rear reat reba rebb rebe reca recc recd rece recr rect reda redc redd rede redl redr reeb reed reel reet rela relb reld rele rell relt rera rerd rere rert reta retd rete retr rett rlab rldt rlee rrad rrat rred rrle rrrr rtca rtcc rtce rtdt rtee rtle rtlt taa- taal taar taat taba tabb tabc tabe tabl taca tacc tace tacl tact tada tade taec tael taer tala talc tale tall tara tarb tarc tard tare tarr tart tata tatb tate tatr tatt tbar tbca tbcb tbcc tbcd tbce tbrb tbta tcad tcca tccc tcdd tctc tdac tdal tddb tdra teac tead teal tear teat teba teca tecl tecr tect teda tedd tede teec teed teel teer teet tel- tela telc teld tele tell telt ter- tera terc tere terr teta tete tetr tett tlac tldr traa trab trac trad trae tral trat trca trcc trcl tre- trea trec tred tree tret trra trtc trte trtr ttab ttbb tter tttt