cccc ccci cccs ccgc ccgs ccgt ccic ccii ccis ccoc ccsg ccsi ccss ccst cctc cctt cgcc cgcg cggs cgis cgss cgst cicc cici cico cics cict cigi cigs ciii ciis ciit cios cis- cisc ciss cist cisy citg citi cito cits citt city coco coct cogi cogo cogs cois coit coos coot cosc cosi coso coss cost cosy cotc coti coto cots cott coty coyo coys coyt cscc csci csco cscs csio csis csit csos csot cstc cstg csto csts csys ctic ctos ctot ctsc ctss ctts cyc- cycc cycs cysg cyst cyt- cyto cyy- cyyc gc-c gccc gccs gcic gcii gcos gcss gcst gctc gcts gggg ggss gigg gigi gigo gigs giis giog gioi giss gist gito gits gogi gogo gogs gois goit goog gooi goos goot gosi goso goss gost goti goto gots gott goty goys goyt gsis gsoc gsos gtco gtcs gtos gysi gyss gyst gytt i-go iccc icci icco iccs icct icgc icis icoc icos icsc icsi icss icst icts igcc iggs iggy igis igoo igot igso iiii iiio iiis iiit iioi iioo iios iisc iisi iist iitt iocg ioci iogt ioii ioio ioit iooi iooo ioos ioso ioto iscc isci isco iscs isct isgc isic isis isit iso- isoc isos issc issi isso isss issy istc isti isto ists isty isys itcs itgc itgo itgs itic itis itoi itoo itos itsi itso itsy itto itty iyos occc occi occt ocis ocos oct- octi octo octs octy ocys oggi oggy ogog ogoi ogsi oici oigo oiii oios oisc oist oitc oiti oooo ooos oosi oost oots ooty oscc osci osco osgi osii osis osoi osoo osos ossi osso ossy ostc osti osts osyt otic otis otit oto- otog otoo otos otoy otsg otso otti otto otts otyg oyss oyst s-ic s-ii s-os sccc sccs scct sccy scgs sci- scic scio scis scit scog scoo scot scsc scsi scso scst sctc scto scts sgcg sggg sggs sgic sgio sgss sgts sicc sici sico sics sigg sigi sigo sigs sigy siit sios siot sisc sisi siss sist sisy sit- sitc siti sito sits sitt sity siyi soci soco socs socy sogi sogo sogs soic sois soit soog soos soot sooy sosi soso soss sost sotc soto sots soyo soys soyt sscc ssci sscs ssgs ssgt ssis ssit ssoc ssot sssc sssi ssss sstc ssts stcc stcs stic stig stio stis stit stog stoo stos stot stoy stsi stss sttc stys syco syis syso syss syst sytt tccc tcos tctc tcts tgcc tgtc tgts ticc tico tics tigi tigs tigy tiit tios tisi tiso tiss tist titc titi tito tits titt tiyi tiyo to-y toci toco togo togs togt tois toit toos toot tosc tosi toso toss tost tosy totc toti toto tots tott toty toyo toys toyt tscc tscg tsgt tsig tsis tsoi tsos tsoy tssg tssi tsst tstc tsts tsys ttoy ttss tttt ttys tyco tyss tyst tyti tyto tytt tyty yccc yctc ygot yiss yist yiti yogi yogo yoit yoot yosi yoso yost yott yoyo ysco ysii yyyy