cccc cccl cccu ccgc ccgt cclc cclg ccnc ccnr ccnu ccoc ccrc ccrg ccrl ccrt cctc cctl cctt ccuc ccut cgcc cgcg cgro cgtl cgtu clog clon cloo clor clot clou clro cltc clun clut cnco cnrc cnrr cnrt cntc cntr cnut coco coct cocu cogo col- coll coln colo colt colu con- conc cong conn cono cont cool coon coot cor- corc corg corl corn coro corr cort cotc cotn coto cott cotu coul coun cour cout crcc crcr croc crol cron croo cror crot crrt crtc crtl crug crun crut ctgu ctlg ctol ctor ctot ctrc ctrl ctrn cttn cucc cucn culc cull culo cult cuno cunt cuon curl curn curo curr curt cut- cutc cuto cutt gc-c gccc gclc gcrg gctc ggcl gggg ggrn glcc glog glor glot glou glro glug glun glur glut gncc gngc gnoo gnrc gnrr gocr gogo goll golo golt golu gon- gong gonn gono gonu goog gool goon goor goot gorg gorn goro gorr gort gotl goto gott gou- goug goul goun gour gout grcc groc grog grol gron groo gror grot grou grrl grrr grtc grug grun grur grut gtco gtcr gugg gugu gull gulo gult gulu gung gunn gunt gurg gurl gurn guro gurr gurt guru guto gutt gutu lccc lcor lcrg lcrl lctl lcto lgtn llcc llgc lllc llll lloc lloo lncr lntc locc locn loco locu log- logo loll lolo long lono lonr lont looc lool loon loor loot lorn loro lotl loto lotr lott loul loun lour lout louu lroc lron lrrc lrrr ltcc ltcg ltng ltnt lttc lttr ltuc lugg lugo lugu lull lulu lung lunn luno lunt lurg lurt nccc nccn nccr ncct nccu ncgr nclc ncln nclr ncnc ncoc ncor ncrc nctc nctr ngol ngon ngor ngou ngtn ngur nguu nlcc nlgn nngn nnnn nnot nntn nocl noco noct nogg nogo nogt noll nolo nolt non- nong nonn nono nont nonu noo- nool noon nooo noor noot nor- norc norg norn noro norr nort not- noto nott noul noun nour nout nroc nron nrrc nrrl nrtl ntcc ntnu ntrc ntrl ntru ntto nttr ntuc nucu null nunc nung nunn nuno nunt nuoc nuon nurc nurl nurn nurr nurt nuru nutt nutu occc occn occt oclc ocon ocrl ocro ocrr oct- octo ocul ocur ognl ogog ogon ogou ogro ogun olcc olgc olgr ollo olog olon olor olot oltu olur onc- onco onct ongo ongu onno onon onor ont- ontc onto onur onut oocr oolo oont oooo oort orco orgn orgo orlo orlu ornc orno oro- oron oror orot orro ortc orto otcl oto- otog oton otoo otor otro otto ottu otur oucc oulu oun- oung our- ourn ouro ourt out- outo ouu- rccc rcgc rcnl rcnr rcon rcrg rctc rctg rgtr rlcg rlug rnco rnnt rnot rnut rocc roco rogg rogo roll rolo rolt ronc rong rono ront roog rool roon roor root rorc roro rort roru rotc rotg rotl rotn roto rotr rott roul roun rout rrrr rrun rtcc rtcg rtlt ruct rugg rull rulo runc rung runn runo runt rurc ruro ruru rutl ruto rutt rutu ruun tccc tccu tcnn tcon tctc tcul tgcc tgtc tlco tlgc tlon tncc tnut toco togo togr togt tol- toll tolo tolt tolu tong tonn tono tonu tool toon toor toot torc torg torn toro torr tort toru totc toto totr tott toug toul toun tour tout trcc trcl trng trno troc trog tron troo trot trou trtc trtr truc trug trun trut truu ttcn tton tttt ttul tucc tuco tugg tugu tull tulo tulu tunc tung tunn tuno tunu tuor turc turg turn turo turr turt turu tutl tuto tutt tutu tuuo ucon ucrc ucut ugcc ugcg uggo uggt ugol ugro ugur uguu ulcc ulco ullo ullr ulno ulo- uloc ulog ulto ultt ulul uncc uncg uncl unco unct ungo ungu unno unon unro unto unut uocc uolc uor- urgu uro- urol uroo urun urur urut utor utto uttu utug uulu uuno uuoc uuuu