c-cor c-p-c c-pop ccccc co-co co-op cocc- cocco cocom cocto comco commo commr comot compo compt coopt coppo copr- copro copto corm- cormo coro- corop corot corto cott- cotto cpctc croco cromo cromp croom croop croot cropc cropo crott mccoo mcrpc mmccc mmmcc mmmmm mocco momot mooro mooto mormo moroc morop moror morro moto- motoc motor motto mrmom mrorr mt-tc mt-tm mt-tp mt-tr mt-tt mtoto octo- octor omoro omoto ooooo opto- optot optto orcop ormoc oroco oromo ortoo otomo ototo otpor ottom p-com pctct po-po pocop pomor poopo poort popco popop poppo porco poro- porro porto potco potoc potom potoo potop potor potro potto promo promt proor proot prop- propp propr propt prot- proto prtor ptprc ptprm ptpro ptprr ptprt r-co- ro-ro rocco rocor rompo rompt roto- rotor rotot rotto rprop rptor t-pop t-top tcpmp tocco toco- tommo tomo- tomom tomor topo- topor topot toppo topto torpo torro torto toto- totoo totop tprot troco tromm tromp troop trop- tropo trott ttttt