ntrc ntrl nttr rccc rcet rcfc rcgc rcic rcle rcnl rcnr rcrg rctc rctg rcti recc rece reci recr rect reef reel reen reet refe reff refg refi refl refn refr reft rege regi regl regn regr regt reif reii reil rein reir reit rele rell relt rene reng reni renn rent rere rerg reri rert rete reti retr rett rfef rffc rffl rfic rftc rgit rgtr ricc rice rict rief riel rien rier riet rife riff rift rige rigg rigi riif riin rile rill rine rinf ring rinn rire riri rite riti ritl ritt rlcg rlee rlef rlif rlin rnie rnin rnli rnnt rrfc rrif rrle rrrr rtcc rtce rtcg rtee rtei rtfc rtle rtlt tccc tcfc tcfg tcnn tctc tecl tecr tect teec teef teel teen teer teet tefc teff tefi tefl teft tegg tegi tegt teic teie teil tein teir tel- telc tele telg teli tell teln telt tenc tene teng teni tenn tent ter- terc tere terf teri tern terr tete teti tetr tett tfec tfin tftc tgcc tgel tgif tgle tgtc ticc tice tie- tiee tief tiei tiel tien tier tiet tiff tift tige tigi tigr tiit tile till tiln tilr tilt tinc tine ting tini tinn tint tire tiri tirl tirr titc tite titi titt tlen tlgc tlli tncc tnef tnfc tnfl tnge trcc trcl tre- trec tree tref treg trei tren tret trfc trfr trge tri- tric trie trif trig tril trin trit trng trtc trte trtr ttcn tten tter ttfc ttff ttfn tttt