-hou cccc ccci cccu cchr ccic ccii ccir ccoc ccrc ccri ccuc chch chci chic chih chir chiu choc choh choi choo chor chou chrc chro chrr chui chur cicc cich cici cico cicr cicu cihr ciii cior circ cirh ciri ciro cirr ciuc coch coco cocu coho coir cooh cor- corc cori coro corr cour crcc crcr cric criu croc croh croo cror cucc cuci cui- cuir curi curo curr h-ii hccc hcch hchi hhhh hi-c hicc hich hico hihc hihi hiho hiiu hioc hiri hiro hiru hoch hocr hoho hoir hoor horc hori horo horr hour hrrc huch hucu huhi huhu huir huor huri huro hurr huru iccc icci icco iccr iccu ichc ichi icho ichr ichu icoc icor icrc icrr icru ihcc ihrc ihuo iiii iiio iioi iioo iirc iiuc ioci ioii ioio iooi iooo iori ircc ircu iri- iric irio iroc iroh irrc irri iucc iuiu occc occi ochi ocro ocrr ocur ohcc ohhi ohho ohio ohoh oici oiii oocr ooho oooh oooo orch orci orco ori- oric orio oro- oror orri orro oucc ouch ouii ouir our- ouro ouu- rccc rcic rhio rhoc rhoh ricc rich rico riho riou riri rocc roch roco rohr rohu roio roir roiu rooi roor rorc rori roro roru rouh rrrr ruch ruci ruhh ruhi ruhr rurc ruri ruro ruru ucci uchi ucho ucio ucrc uhoh uhuh uirr uocc uor- urch urci urho uric uriu uro- uroo urrh urri urur uuoc uuri uuuu