oons oont oooo ooos oosi oost oots oscc osci osco osdi osgi osii osin osis osno osoi osoo osos ossd ossi osso ostc osti osts otcd otfc otic otif otin otis otit oto- otof otog oton otoo otos otsg otso otti otto otts s-ic s-ii s-os sccc sccs scct scdc scdf scdg scds scfc scfg scfi scgs sci- scic scid scif scin scio scis scit scnd scnt scog scon scoo scot scsc scsd scsi scsn scso scst sctc sctd sctn scto scts sdcc sdco sddc sdds sdfc sdgs sdic sdif sdio sdog sdot sdsc sdsf sdss sfcc sfcg sfco sfcs sfdc sffc sfio sfnt sfog sfos sfss sfts sgcd sgcg sggg sggs sgic sgio sgsd sgss sgts sicc sici sico sics sidd sidi sido sids siff sifo sift sigd sigg sigi sign sigo sigs siit sind sing sini sinn sino sins sint siod sion sios siot sisc sisd sisi siss sist sit- sitc sitd siti sitn sito sits sitt sncc sncf snco snid snig snit snns snoc snod snog snoo snos snot snsd soci soco socs sodd sodo sods sofi sofo soft sogi sogn sogo sogs soic soif soin sois soit son- sond song soni sono sons sont sood soof soog soon soos soot sosi soso soss sost sotc sotn soto sots sscc ssci sscs ssdc ssdd ssdf ssfc ssgs ssgt ssid ssin ssis ssit ssns ssoc ssot sssc sssf sssi ssss sstc sstd ssts stcc stcs stds stfc stfn stic stid stif stig stio stis stit stnd stng stnn stns stod stof stog ston stoo stos stot stsf stsi stss sttc sttd tccc tcdd tcfc tcfg tcnn tcon tcos tctc tcts tdff tdis tdss tfdc tfin tfot tfsd tfsi tfss tftc tgcc tgif tgtc tgts ticc tico tics tidc tidd tids tiff tifo tift tigi tigs tiit tinc tind ting tini tinn tino tins tint tion tios tisi tiso tiss tist titc titi tito tits titt tncc tndd tndf tnfc tngs tnts toci toco todd todi todo tods todt toff tofi tofo toft togo togs togt toid tois toit tong toni tonn tono tons tood toof toon toos toot tosc tosi toso toss tost totc totd toti toto tots tott tscc tscg tsfc tsgt tsid tsig tsin tsis tsoi tsos tssf tssg tssi tsst tstc tsts ttcn ttfc ttff ttfn tton ttss tttt