ntuc ntui nubc nubi nuci nucu nudc nudd nudi nudo nuin nuit nunc nunn nuno nunt nuoc nuon nurc nurd nuri nurn nurp nurr nurt nuru nutt nutu obbo obdt obid obin obit oboi obon obor obot obri obro obtd ocbc occc occi occn occt ocin ocon ocpd ocpp ocro ocrr oct- octi octo ocur odbo odci oddd oddi odic odin odio odir odiu odnb odon odoo odop odor odot odou odrp odtu odur oici oido oiii oint oion oipc oirt oitc oiti onc- oncd onco onct ondi ondo onic onir onit onni onno onod onon onor onpt onpu ont- ontc onti onto onup onur onut oobi oocr oodi ooid oont oooo oord oort ootb ootp opic opii opin opio opit opo- opon opor oppi oppo opti optn opto orbb orbi orbo orbu orci orco ordn ordo ordu ori- oric orid orin orio orit ornc orni orno oro- oron oror orot orpc orpi orri orro ortc orto orub orup otbd otcd otic otin otit oto- oton otoo otor otpp otro otti otto ottu otur oucc oudc ouii ouin ouir ouit oun- ound our- ourn ouro ourt out- outb outi outo ouu- pbcc pboc pcbc pccc pcin pcip pcnt pcod pcpb pcpn pcpp pcrc pcrd pcun pdci pdcp pdic pdoc pdpn pdpr pdrc pdtc pibb pibi picc pici pico picr pict picu pido piip pinc pind pini pinn pino pinp pint pinu piob pion piot pipi pipo pipp pirc piri pirn piro pirr piru piti pito pitr pitt pitu pnic pnin pnon pnot pnpo pnpp pnro pntd pntr pnup pobo pocd poco pod- podd podi podo podu poid poin poio ponc pond poni pono ponp pont pood poon poop poor poot pop- popc popi popo popp popt porb porc pori porn poro porr port potc potd poti poto pott potu poud poui poun poup pour pout ppcc ppcd ppci ppib ppic ppid ppod pppd pppn pppo pppp pprc ppru pptn pptt ppur prbc prcc prcd prcp pri- prid prii prin prnd prnp pro- prob proc prod pron proo prop prot prou prpd prrd prri prtc prti prtp prtr prud prut pruu ptcc ptdc ptop ptpd ptrd pttc ptui pubu pudo pudu puid puin puir puit puiu punc pund puno punt punu pupi pupu pur- purb puri puro purp purr puru put- puti puto putt putu puuc rbbb rbbr rcbc rcbo rccb rccc rcdc rcic rcid rcnr rcon rcpd rcpi rcpo rcpt rcrd rctc rcti rdbp rdio rdoc rdpc rib- ribo ribu ricc rico rict ridc ridd ridi rido riin rind rinn rino rion riot riou ripd ripi ripp ripr ript riri riti rito ritt ritu rnbr rnco rncp rndc rndp rnin rnnt rnod rnot rntd rntp rnut rob- robb robi robo robt robu rocc roco rodd rodi rodo roid roin roio roir roit roiu ronc rond roni rono ront roob rood rooi roon roop roor root ropo rorc rori roro rort roru rotc roti rotn roto rotr rott roub roud roun roup rout rpdp rpii rpob rpon rppn rptd rptn rrrr rrun rtcc rtdt rtnd rttp rubb rubi rubp rubu ruci ruct rudd rudi rudo rudp ruid ruin ruit runc rund runi runn runo runt rupp rupt rurc rurd ruri ruro rurp ruru ruti ruto rutt rutu ruud ruun tbcb tbcc tbcd tbit tbrb tbtp tccc tccu tcdd tcnn tcon tcpo tctc tddb tdor tdri tibi tibu ticc tico tidc tidd tiit tiiu tinc tind tini tinn tino tint tinu tion tiop tiou tip- tipc tipi tipo tipp tipt tipu tirb tird tiri tiro tirr tiru titc titi tito titp titt titu tnbc tncc tndd tnut tobi tobo tobt tobu toci toco todd todi todo todt todu toid toit tonb toni tonn tono tonu tood toon toor toot top- topd topi topo topp topt topu torc tord tori torn toro torp torr tort toru totc totd toti toto totr tott toui toun toup tour tout tpcd tpcp tpdu tpir tpon tppd tppp tppr tptp tptr tput trcc tri- trib tric trin trio trip trit trno troc trod troi tron troo trop trot trou trpc trpn trpp trtc trtr trub truc trud trun trut truu ttbb ttcn ttcp tton ttop tttt tubb tubo tubr tubu tucc tuco tudi tudu tuin tuit tuiu tunb tunc tund tuni tunn tuno tunu tuor tupi tupo tupu turb turc turd turi turn turo turp turr turt turu tuti tuto tutt tutu tuuo u-rp ubbi ubbo ubic ubid ubii ubir ubit uboc ubod ubon ubpc ubud ucbc ucci uccp ucdc ucdd ucin ucio ucon ucpb ucrc ucut udbc uddi udic udid udin udir udon udoo udop udot udpd udun uint uipi uirr unbd uncc unci unco uncp unct undi undo uni- unic unii unin unio unir unit unni unno unon unop unpc unro untb unto unut uocc uor- upci updo upic upin upnp upon upor uppc uppp uppu upri upto upup urbi urci urdu urib uric urin uriu urni uro- uroo urpo urri urun urup urur urut utid utin utor utpd utri utti utto uttu uucp uuni uuno uuoc uuri uuuu