-hou cccc cccu cchr ccoc ccrc ccrt cctc cctt ccuc ccut chch choc choh choo chor chou chrc chro chrr chrt chto chtr chtt chur chut coch coco coct cocu coho cooh coot cor- corc coro corr cort cotc coth coto cott cotu cour cout crcc crcr croc croh croo cror crot crrt crtc crut ctor ctot ctrc cucc curo curr curt cut- cutc cuth cuto cutt hccc hcch hhhh hoch hocr hoho hoor hoot horc horo horr hort hoth hoto hotr hott hotu hour hout hrrc htcc htoh httr huch hucu huhu huor huot huro hurr hurt huru huth huto hutt hutu occc occt ocht ocro ocrr oct- octo ocur ohcc ohho ohoh ohto ohtu oocr ooho oooh oooo oort orch orco oro- oror orot orro ortc orth orto otho othr oto- otoh otoo otor otro otto ottu otur oucc ouch our- ouro ourt out- outh outo ouu- rccc rctc rhoc rhoh rocc roch roco rohr rohu roor root rorc roro rort roru rotc roth roto rotr rott rouh rout rrrr rtcc ruch ruct ruhh ruhr rurc ruro ruru ruth ruto rutt rutu tccc tccu tch- tchh tcho tchr tchu tctc thch thoo thor thot thou thro thru thtr thur toch toco toho tohu tooh toor toot torc toro torr tort toru totc toth toto totr tott touh tour tout trcc troc troo trot trou trtc trtr truc trut truu tttt tucc tuch tuco tuht tuhu tuor turc turo turr turt turu tuto tutt tutu tuuo ucho ucrc ucut uhoh uhuh uocc uor- urch urho uro- uroo urrh urth urur urut utor utto uttu uuoc uuuu