ptcl pter ptrf pttc rbbb rbbr rbcl rble rcbc rccb rccc rcep rcet rcfc rcic rcle rcpi rcpt rctc rcti rebb rebe recc rece reci recp recr rect reeb reef reel reep reet refe reff refi refl refr reft reif reii reil reir reit relb rele rell relp relt repe repi repl repp repr rept rere reri rert rete reti retr rett rfef rffc rffl rfic rftc rib- ribe ricc rice rict rief riel riep rier riet rife riff rift riif rile rill rilp ripe ripi ripl ripp ripr ript rire riri rite riti ritl ritt rlee rlef rlif rpet rpfc rpii rrfc rrif rrle rrrr rtbf rtcc rtce rtee rtei rtfb rtfc rtle rtlt rttp tbcb tbcc tbce tbil tbit tbrb tbtp tccc tcep tcfc tctc tecl tecr tect teec teef teel teer teet tefc teff tefi tefl teft teic teie teil teip teir tel- telc tele teli tell telt tepe tepi tepp ter- terc tere terf teri terp terr tete teti tetr tett tfeb tfec tfpt tftc tftp tibi ticc tice tie- tiee tief tiei tiel tiep tier tiet tiff tift tiit tile till tilr tilt tip- tipc tipe tipi tipp tipt tirb tire tiri tirl tirr titc tite titi titp titt tlli tpcp tper tpir tppp tppr tpte tptp tptr trcc trcl tre- trec tree tref trei tret trfc trfr tri- trib tric trie trif tril trip trit trpc trpe trpp trtc trte trtr ttbb ttcp tter ttfc ttff tttt