cccc cccp cccs ccoc ccpp ccps ccsp ccss ccst cctc cctt coco cocp coct coop coos coot copo copp cops copt copy cosc coso cosp coss cost cosy cotc coto cots cott coty coyo coys coyt cpcs cpos cpps cpsc cpso cptp cpts cscc csco cscs csos csot cspc csps cspt cstc csto csts csys ctcp ctos ctot ctpo ctpp ctps ctsc ctss ctts cyc- cycc cycs cypc cyps cyst cyt- cyto cyy- cyyc occc occt ocos ocpp oct- octo octs octy ocys oooo ooos oops oost ootp oots ooty opo- opos oppo opps oppy opsy opto opts oscc osco osoo osos osso ossy ostc osts osyp osyt oto- otoo otos otoy otpp otso otto otts oyss oyst pccc pccs pcos pcpp pcps pcso pcts poco pocs poop poos poot pop- popc popo popp pops popt popy poso poss post posy potc poto pots pott poty poyo poys ppcc ppcs ppos pppo pppp ppps ppss ppts pptt psco psoc psos pspp psps pssc psso psst psts psy- psys ptcc ptop pttc pyo- pyos pyot pypy pyss pyst pytt s-os sccc sccp sccs scct sccy scoo scop scot scpo scps scpt scsc scso scst sctc scto scts soco socs socy soop soos soot sooy sopo sopp sops sopy soso soss sost sotc soto sotp sots soyo soys soyt spcc spco spcs spoc spoo spop spos spot spoy spps spso spsp spss spst sptc spto spts spy- spys sscc sscp sscs ssoc ssop ssot sspc sspo ssps sspt sssc ssss sstc sstp ssts stcc stcp stcs stoo stop stos stot stoy stpp stps stss sttc stys syco sypo syso syss syst sytt tccc tcos tcpo tcpy tctc tcts to-y toco toos toot top- topo topp tops topt tosc toso toss tost tosy totc toto tots tott toty toyo toys toyt tpcp tpcs tppp tpsc tptp tpyo tscc tscp tsop tsos tsoy tspo tsps tspt tsst tstc tsts tsys ttcp ttop ttoy ttss tttt ttys tyco typ- typo typp typy tyss tyst tyto tytt tyty yccc yctc yoop yoot yopo yopy yoso yost yott yoyo ypcc ysco ysop yyyy