cccc cccl cccp cchl cchp cclc ccoc ccpl ccpp chch chcp chlc chlp choc choh chol choo chop chpp cloo clop clpp coch coco cocp coho col- coll colo colp cooh cool coop coph copo copp cphl cplc hccc hcch hcpc hhcl hhhh hhpc hoch hohl hoho hol- holc holh holl holo holp hool hoop hopo hopp hpcc lccc lchc lcpc lcpl lhhh llcc lllc llll lloc lloo locc loch loco loho loll lolo looc lool loop lopp lppl occc oclc ocpp ohcc ohho ohoh olcc ollo olpc olph ooho oolo oooh oooo opo- oppo pccc pccl pchp pcll pclo pcpp phcc phlo phoh phoo plcc plch ploc ploh ploo plop plpp poch poco pohl poll polo pooh pool poop pop- popc popo popp ppcc pplo pppo pppp