reot reou repe repo repp repr rept repu rere rerg rero rert reru rete reto retr rett reue reup reut reuu rgtr rnco rncp rnnt rnot rntp rnut rocc roce roco roeg roen roer roet roge rogg rogo ronc rone rong rono ront roog roon roop roor root rope ropo rorc rore roro rort roru rotc rote rotg rotn roto rotr rott roue roun roup rout rpet rpoe rpon rppn rptn rrrr rrun rtcc rtce rtcg rtee rttp ruce ruct ruen ruer ruet ruge rugg runc rune rung runn runo runt rupe rupp rupt rurc rure ruro rurp ruru rute ruto rutt rutu ruun tccc tccu tcep tcnn tcon tcpo tctc teco tecr tect teec teen teer teet tegg tego tegt tegu tenc tene teng tenn teno tenp tent tenu teon teor tepe tepp tepu ter- terc tere tern tero terp terr teru tete teto tetr tett tetu teut tgcc tgtc tncc tnge tnut toce toco toee toen toer toet toge togo togr togt tone tong tonn tono tonu toon toor toot top- tope topo topp topt topu torc tore torg torn toro torp torr tort toru totc tote toto totr tott toug toun toup tour tout tpcp tpeg tper tpon tppp tppr tpte tptp tptr tput trcc tre- trec tree treg tren treo tret treu trge trng trno troc troe trog tron troo trop trot trou trpc trpe trpg trpn trpp trtc trte trtr truc true trug trun trut truu ttcn ttcp tten tteo tter ttoe tton ttop tttt tucc tuco tuen tuer tuet tugg tugu tunc tune tung tunn tuno tunu tuor tupe tupo tupu turc ture turg turn turo turp turr turt turu tute tuto tutt tutu tuuo u-rp uccp ucon ucrc ucut ueno ugcc ugcg ugeo ugep uggo uggt ugne ugro ugur uguu uncc unce uncg unco uncp unct unec unee unen uner ungo ungp ungu unne unno unon unop unpc unro unte unto unut uocc uone uor- uore upen upgo upne upnp upon upor uppc uppe uppp uppu upto upup ure- uret urge urgu urne uro- uroo urpo urre urte urun urup urur urut utec utep uter utne utor utto uttu utug uucp uuen uuno uuoc uuuu