cccc cccs ccnc ccns ccoc ccsn ccss ccst cctc cctt cnco cnss cntc coco coct con- conc conn cono cons cont coon coos coot cosc coso coss cost cotc cotn coto cots cott cscc csco cscs csos csot cstc csto csts ctns ctos ctot ctsc ctsn ctss cttn ctts nccc nccn nccs ncct ncnc ncoc ncos ncsc ncss ncst nctc nnnn nnos nnot nnss nntn noco nocs noct non- nonn nono nons nont noo- noon nooo noos noot nos- noss nost not- noto nots nott nscc nscs nsos nssc nsso nsss nstc nsts ntcc ntsc ntss ntto occc occn occt ocon ocos oct- octo octs onc- onco onct onno onon onos onsc onso onst ont- ontc onto oons oont oooo ooos oost oots oscc osco osno osoo osos osso ostc osts oto- oton otoo otos otso otto otts s-os sccc sccs scct scnt scon scoo scot scsc scsn scso scst sctc sctn scto scts sncc snco snns snoc snoo snos snot soco socs son- sono sons sont soon soos soot soso soss sost sotc sotn soto sots sscc sscs ssns ssoc ssot sssc ssss sstc ssts stcc stcs stnn stns ston stoo stos stot stss sttc tccc tcnn tcon tcos tctc tcts tncc tnts toco tonn tono tons toon toos toot tosc toso toss tost totc toto tots tott tscc tsos tsst tstc tsts ttcn tton ttss tttt