cccc cccp ccnc ccnp ccoc ccpn ccpp cctc cctt cnco cncp cntc coco cocp coct con- conc conn cono cont coon coop coot copo copp copt cotc cotn coto cott cpnt cptp ctcp ctot ctpo ctpp cttn nccc nccn nccp ncct ncnc ncoc ncpc nctc nnnn nnot nntn noco noct non- nonn nono nont noo- noon nooo noop noot not- noto nott npcc nppc nptc nptn ntcc ntop ntpc ntto occc occn occt ocon ocpp oct- octo onc- onco onct onno onon onpt ont- ontc onto oont oooo ootp opo- opon oppo optn opto oto- oton otoo otpp otto pccc pcnt pcpn pcpp pnon pnot pnpo pnpp poco ponc pono ponp pont poon poop poot pop- popc popo popp popt potc poto pott ppcc pppn pppo pppp pptn pptt ptcc ptop pttc tccc tcnn tcon tcpo tctc tncc toco tonn tono toon toot top- topo topp topt totc toto tott tpcp tpon tppp tptp ttcn ttcp tton ttop tttt