ptca ptcc pter ptop ptrf pttc raaf raat rac- raca racc race raco ract raec raef raep raer rafa rafc rafe raff raft raoc raop rapa rapc rape rapp rapt rara rare rarf raro rata rate ratf rato ratp ratt rcac rcaf rccc rcep rcet rcfc rcpo rcpt rctc rea- reac reae reaf reao reap rear reat reca recc rece recp recr rect reef reep reet refe reff refr reft reof reop reot repe repo repp repr rept rera rere rero rert reta rete reto retr rett rfae rfef rffc rftc roaf roap roar roat roca rocc roce roco roea roer roet rofc rofe roff rofo roof roop roor root ropa rope ropo rora rorc rore roro rort rota rotc rote roto rotr rott rpca rpet rpfc rpoe rpof rpta rrat rrfc rrrr rtca rtcc rtce rtee rtfc rtpa rttp taa- taaf taar taat taca tacc tace taco tact taec taer tafa tafc tafe taff tafo taft taoa taor tapa tape tapo tapp tapr tapt tara tarc tare tarf taro tarp tarr tart tata tate tato tatr tatt tcap tcca tccc tcep tcfc tcpa tcpo tctc teac tear teat teca teco tecr tect teec teef teer teet tefc teff teft teor tepa tepe tepp ter- tera terc tere terf tero terp terr teta tete teto tetr tett tfae tfca tfec tfot tfpt tftc tftp toat toca toce toco toea toee toer toet tofa toff tofo toft tooa toof toor toot top- topa tope topf topo topp topt tora torc tore torf toro torp torr tort tota totc tote toto totr tott tpac tpap tpcp tper tppa tppp tppr tpte tptp tptr traa trac trae traf trao trap trat trca trcc tre- trea trec tree tref treo tret trfc trfr troa troc troe troo trop trot trpa trpc trpe trpp trra trtc trte trtr ttcp tteo tter ttfa ttfc ttff ttoe ttop tttt