rctg rea- reac reae real rean rear reat reca recc rece recr rect reel reen reet rega rege regl regn regr regt rela rele rell relt rena rene reng renn rent rera rere rerg rert reta rete retr rett rgan rgtr rlcg rlee rnag rnal rnnt rrat rrle rrna rrrr rtan rtca rtcc rtce rtcg rtee rtle rtlt taa- taag taal taan taar taat taca tacc tace tacl tact taec tael taen taer taga tage tagg tala talc tale tall tana tane tang tann tant tara tarc tare targ tarn tarr tart tata tate tatr tatt tcca tccc tcga tcnn tctc teac teal tean tear teat teca tecl tecr tect teec teel teen teer teet tega tegg tegt tel- tela telc tele telg tell teln telt tena tenc tene teng tenn tent ter- tera terc tere tern terr teta tete tetr tett tgcc tgel tgle tgtc tlac tlen tlgc tnag tnca tncc tnge tnla traa trac trae trag tral tran trat trca trcc trcl tre- trea trec tree treg tren tret trge trna trng trra trtc trte trtr ttcn tten tter tttt