-hou c-cd cccc cccu ccdc ccdh ccdr cchr ccoc ccod ccrc ccuc cd-r cddr chch choc chod choh choo chor chou chrc chrd chro chrr chud chur coch coco cocu codd coho cood cooh cor- corc cord coro corr coud cour crcc crcr crdc croc crod croh croo cror crud cucc curd curo curr dccc dccu dddd ddoc ddrc dhod dhor dhur doch doco docu dod- dodd dodo dohc dohr dood door dorc dord doro dorr doru douc doud dour drod droh drou druu duch duco dudd dudo dudu duhr duhu duo- duro duru duur hccc hcch hcdr hcrd hdoc hdod hhhh hoch hocr hodh hodr hoho hood hoor horc hord horo horr houd hour hrdc hrod hrrc hrud huch hucu hudd hudo hudu huhu huor hurd huro hurr huru occc ocro ocrr ocur oddd odoh odoo odor odou odur ohcc ohho ohoh oocr ooho oooh oooo oord orch orco ordo ordu oro- oror orro oucc ouch oudc oudh our- ouro ouu- rccc rcdc rcrd rdoc rhoc rhod rhoh rocc roch roco rodd rodo rohr rohu rood roor rorc roro roru roud rouh rrrr ruch rudd rudo ruhh ruhr rurc rurd ruro ruru ruud ucdc ucdd ucho ucrc udoh udoo uh-d uhoh uhuh uocc uor- urch urdu urho uro- uroo urrh urur uuoc uuuu