c-cor c-dot c-p-c c-pop ccccc cd-np cnnnn cntrc co-co co-np co-op cocc- cocco cocon cocto codco codo codon conco concr condo condr cono- conon conop conor contd contn conto contr coopt coord coppo copr- copro copto corno coro- corod coron corop corot corto coton cott- cotto cpctc croco crodo crood croon croop croot cropc cropo crott d-con d-dot d-rod dconn ddddd ddntp do-do dodon dodoo dodro dondo donon donor donot doodo doorn dordt dorno doron dorot dotoo dotto dpond drood droon droop drop- dropo dropt drott n-p-n ndpcp nnooo no-do no-no no-op noct- nocto nodto nondo nonno nonop nonot nonpc noord noort norcd norco nordo noroc noron norro nortt notdo notno noto- noton notpc notto nrotc ntntd ntoro ocorn octo- octon octor odont oncdr onco- onond onont onoon onorn onoto onpop onpot onto- ontoo ontop ooooo oopod opcon opdoc opnto opodo oppon opto- optot optto orcon orcop ordoc ordon ordro ornon ornot oroco orodo orono orton ortoo otono ototo otpor p-n-p pctct po-on po-po pocno pocop podo- podor pondo ponor ponto poond poopo poort popco popon popop poppo porcn porco porn- porno poro- poron porro porto potco potoc poton potoo potop potor potro potto pptnt prntr prodd proor proot prop- propn propp propr propt prot- proto prtor ptprc ptprd ptprn ptpro ptprr ptprt r-co- rnctd ro-ro rocco rocor rodoc rodon rodor ronco rondo ronno ronto roond roto- roton rotor rotot rotto rprop rptor t-pop t-top tntnt to-do tocco toco- todor tonco tondo tono- tonod tonto toord topo- topon topor topot toppo topto toron torpo torro torto toto- toton totoo totop tprot troco tronc trond trono trood troon troop trop- tropo trott ttttt