c-cor c-p-c c-pop ccccc ccrcl cloop cloor co-co co-op cocc- cocco cocol coll- collo colo- colop color colp- colpo coolo coppo copr- copro coro- corol corop corrl croco croll crool croop cropc cropo l-pop loco- locro lollo lolol ocllo ooooo oploo oppol orcop orlop oroco ploop plopp po-po pocol pocop polco pollo polop poopo popco poplr popop poppo porco poro- porro proll prolo proor prop- propl propp propr r-co- rcolo ro-ro rocco rocor rollc rollo rprop