-hou cccc cccl cccu cchl cchr cclc ccoc ccrc ccrl ccuc chch chlc chlr choc choh chol choo chor chou chrc chro chrr chul chur cloo clor clou clro cluh coch coco cocu coho col- coll colo colu cooh cool cor- corc corl coro corr coul cour crcc crcr croc croh crol croo cror cucc culc cull culo curl curo curr hccc hcch hhcl hhhh hlul hoch hocr hohl hoho hol- holc holh holl holo holu hool hoor horc horl horo horr hour hrrc huch hucu huhu hulc hull hulu huor hurl huro hurr huru lccc lchc lchr lcor lcrl lhhh lhor llcc lllc llll lloc lloo locc loch loco locu loho lohr lohu loll lolo looc lool loor loro louh loul lour louu lroc lrrc lrrr luch luhu lull lulu luoh occc oclc ocrl ocro ocrr ocul ocur ohcc ohho ohoh olcc ollo olor olur oocr ooho oolo oooh oooo orch orco orlo orlu oro- oror orro oucc ouch oulu our- ouro ouu- rccc rhoc rhoh rocc roch roco rohl rohr rohu roll rolo rool roor rorc roro roru rouh roul rrrr ruch ruhh ruhl ruhr rull rulo rurc ruro ruru ucho ucrc uhcl uhoh uhuh ulcc ulch ulco ullo ullr ulo- uloc ulul uocc uolc uor- urch urho uro- urol uroo urrh urur uulu uuoc uuuu