oreo orer ores orfe orff orfs orle orlo oro- oroe orof oror oros orot orro orrs orse orso ortc orte orto orts oscc osce oscl osco osec osed osee osel oser oses oset oslo osoo osor osos osrd osro ossd osse osso ostc oste ostr osts otcd otcl oted otee oter otes otfc oto- otoe otof otoo otor otos otre otro otrs otse otso otte otto otts rccc rccs rcdc rcde rcds rcet rcfc rcle rcls rcos rcrd rcsc rcsd rcsl rcss rctc rcts rder rdoc rdos rdso recc recd rece recr recs rect redc redd rede redl redo redr reds reed reef reel rees reet refd refe reff refl refr refs reft reld rele rell relo rels relt reod reof reol reos reot rerd rere rero rers rert rese reso ress rest retd rete reto retr rets rett rfds rfef rffc rffl rftc rlcs rlds rldt rlee rlef rlls rocc roce roco rocs rodd rode rodo rods roed roel roer roes roet rofc rofe roff rofl rofo rold role rolf roll rolo rolt rood roof rool roor roos root rorc rore roro rort rosc rose roso ross rost rotc rote rotl roto rotr rots rott rred rrfc rrle rrrr rscc rscs rsdd rsdl rsds rsee rsfc rslc rsos rsre rssl rsts rtcc rtce rtdt rtee rtes rtfc rtle rtls rtlt rtss rtts s-os sccc scce sccl sccs scct scdc scdf scds scec scee scel scer scet scfc scfe scl- sclc scls scol scoo scor scot scr- scrc scre scrs scsc scsd scsl scso scsr scst sctc sctd sctl scto sctr scts sdcc sdco sddc sdds sdef sder sdes sdet sdfc sdlc sdls sdlt sdot sdrc sdrs sdsc sdsf sdsl sdss se-c se-d se-e se-f se-o se-s se-t sec- secc secd sece seco secr secs sect sede sedo seds seec seed seef seel seer sees seet seff sefl seft seld sele self sell selo sels selt seoc seod seol serc serd sere serf sero serr sers sert sesc sese seso sess sest set- setc sete setf setl seto sets sett sfcc sfco sfcs sfdc sfer sffc sflc sfls sfor sfos sfrc sfro sfss sfts slcc slcd slds sled slee sler sles slet slft sloc slod sloe sloo slos slot slrc slre slrs slsc slst slts soce socl soco socr socs sodd sode sodo sods soec soel soeo soes sofo soft sold sole solf soll solo solr sols solt sood soof sool soor soos soot sord sore soro sorr sors sort sose soso soss sost sotc sote sotl soto sots srcc srct srde srec sreo sres srfc sros srsd srtr sscc ssce sscs ssdc ssdd ssdf ssec ssee sses sset ssfc ssfl sslc ssle sslt ssoc ssot ssrc ssrl ssrs sssc sssf ssss sstc sstd sstl ssts stcc stcs stds stec sted stee stef stel steo ster stes stet stfc stlc stld stle stlo stlt stod stoe stof stol stoo stor stos stot strc strd stre stro strs stsf stss sttc sttd sttr tccc tcdd tcfc tcos tctc tcts tdes tdff tdls tdor tdse tdss tecl teco tecr tecs tect tedd tede teds teec teed teef teel teer tees teet tefc teff tefl teft tel- telc teld tele tell telo tels telt teor teos ter- terc tere terf tero terr ters tesc tesd tese tesl teso tess test tete teto tetr tets tett tfdc tfec tfot tfrs tfsd tfss tftc tlco tldr tlos tlrs toce toco todd tode todo tods todt toed toee toer toes toet toff tofo toft tol- told tole toll tolo tolt tood toof tool toor toos toot torc tord tore torf toro torr tors tort tosc tose toso toss tost totc totd tote toto totr tots tott trcc trcl tre- trec tred tree tref treo tres tret trfc trfd trfr troc trod troe troo tros trot trsd trst trtc trte trtr tscc tsec tses tset tsfc tsfl tsol tsos tsse tssf tssr tsst tstc tsts tteo tter ttfc ttff ttoe ttss tttt