ract raec rael raen raer rala ralb rale rall ralt rana ranc rane rann rant rara rarb rare rata rate ratt rbbb rbbr rbcl rble rcac rcbc rccb rccc rcet rcle rcnl rcnr rctc rea- reac reae real rean rear reat reba rebb rebe reca recc rece recr rect reeb reel reen reet rela relb rele rell relt rena rene renn rent rera rere rert reta rete retr rett rlab rlee rnal rnbr rnnt rrat rrle rrna rrrr rtan rtca rtcc rtce rtee rtle rtlt taa- taal taan taar taat taba tabb tabc tabe tabl taca tacc tace tacl tact taec tael taen taer tala talc tale tall tana tane tann tant tara tarb tarc tare tarn tarr tart tata tatb tate tatr tatt tbar tbca tbcb tbcc tbce tbrb tbta tcca tccc tcnn tctc teac teal tean tear teat teba teca tecl tecr tect teec teel teen teer teet tel- tela telc tele tell teln telt tena tenb tenc tene tenn tent ter- tera terc tere tern terr teta tete tetr tett tlac tlen tnbc tnca tncc tneb tnla traa trab trac trae tral tran trat trca trcc trcl tre- trea trec tree tren tret trna trra trtc trte trtr ttab ttbb ttcn tten tter tttt