oici oier oies oiii oios oipc oire oirt oisc oise oist oitc oiti oobe oobi oocr ooer ooes oooo ooos oops oore oort oose oosi oost ootb ootp oots opec opei opep oper opes opet opic opie opii opio opis opit opo- opor opos oppi oppo opps opsi opti opto opts orbb orbe orbi orbo orbs orce orci orco orcs ore- oreb orec oreo orer ores ori- oric orie orio oris orit oro- oroe oror oros orot orpc orpe orpi orps orri orro orrs orse orsi orso ortc orte orto orts osbe osbp oscc osce osci osco osec osee osei oser oses oset osie osii osip osis osoi osoo osor osos osro ossb osse ossi osso ostc oste osti ostr osts otbs otee otep oter otes otic otis otit oto- otoe otoo otor otos otpp otre otro otrs otse otso otte otti otto otts pbcc pboc pbrs pbsp pcbc pcbs pccc pcce pccs pcep pcer pcip pcoe pcos pcpb pcpp pcps pcrc pcre pcse pcso pcte pcts pece peci peco pecr pecs pect peec peep peer pees peet peio peip peir peis peit peor pepe pepi pepo peps per- perc pere peri pero perp perr pers pert pese pesi peso pess pest pete peti peto petr pets pett pibb pibi picc pice pici pico picr pics pict piep pier pies piet piip piob piot pipe pipi pipo pipp pips pirc pire piri piro pirr pirs pise pisi piso piss pist pite piti pito pitr pits pitt pobo pobs poce poco pocs poer poes poet poio pois poop poor poos poot pop- popc pope popi popo popp pops popt porb porc pore pori poro porr pors port posb pose posi poso poss post potc pote poti poto pots pott ppcc ppci ppcs pper ppib ppic ppie ppos pppo pppp ppps pprc ppss ppts pptt prbc prbs prcc prcp prcs pre- preb prec pree prep pres pret pri- prie prii pris pro- prob proc proe proo prop pros prot prps prri prrs prsc prse prsi prso prss prtc prti prtp prtr psbr psbt psci psco pseb psec psei psip psis psoc psoi psos pspi pspp pspr psps psrp pssc psse psso psst psts ptcc pter ptop pttc rbbb rbbr rbbs rbis rbsp rbss rbst rcbc rcbo rccb rccc rccs rcep rcet rcic rcis rcos rcpi rcpo rcps rcpt rcsc rcsi rcss rctc rcti rcts rebb rebe rebo rebs recc rece reci recp recr recs rect reeb reep rees reet reii reir reis reit reop reos reot repe repi repo repp repr reps rept rere reri rero rers rert rese resi reso resp ress rest rete reti reto retr rets rett rib- ribe ribo ribs ricc rice rico rics rict riep rier ries riet riis rios riot ripe ripi ripp ripr rips ript rire riri rirs risc rise risi riso risp riss rist rite riti rito rits ritt rob- robb robe robi robo robs robt rocc roce roco rocs roer roes roet roio roir rois roit roob rooi roop roor roos root rope ropo rops rorc rore rori roro rort rosc rose rosi roso rosp ross rost rotc rote roti roto rotr rots rott rpcs rpet rpii rpob rpoe rpos rpps rpts rrrr rrsp rsbi rscc rscs rsee rsis rsos rspb rspo rsps rsre rstp rsts rtcc rtce rtee rtei rtes rtps rtss rttp rtts s-ib s-ic s-ii s-os sbbs sbcc sbcs sbct sber sbic sbor sbot sbse sbsi sbsp sbst sbtc scbi sccc scce sccp sccs scct scec scee scep scer scet sci- scic scie scio scip scir scis scit scob scoo scop scor scot scpb scpe scpi scpo scps scpt scr- scrc scre scri scrs scsc scsi scso scsr scst sctc scto sctr scts se-c se-e se-i se-o se-s se-t sebe sebi sebo sebs sebt sec- secc sece seco secr secs sect seeb seec seep seer sees seet seie seii seip seir seis seit seoc seoi seop sepe sepi sepo sepp sepr seps sept serb serc sere seri sero serp serr sers sert sesc sese sesi seso sess sest set- setc sete seti seto sets sett sibc sibe sibi sibo sibs sicc sice sici sico sicp sics siec sier sies siit sioe siop sior sios siot sipc sipe sipi sipo sipp sips sipt sirc sire siri siro sirp sirr sirs sirt sisc sise sisi siss sist sit- sitc site siti sito sits sitt sobe sobo sobp sobr sobs sobt soce soci soco socr socs soec soeo soep soes soic soie soir sois soit soop soor soos soot sope sopi sopo sopp sops sorb sore sori soro sorr sors sort sose sosi soso soss sost sotc sote soto sotp sots spcc spco spcs speb spec spee sper spes spet spib spic spie spio spip spir spis spit spoc spoo spop spor spos spot spps spri spro sprs spse spso spsp spss spst sptb sptc spto sptr spts srbc srcc srct sreb srec sreo sres srib sris sros srpc srps srpt srsp srtp srtr ssbr sscc ssce ssci sscp sscs ssec ssee ssep sses sset ssis ssit ssoc ssop ssot sspc sspe sspo ssps sspt ssrc ssri ssrs sssb sssc sssi ssss sstb sstc sstp ssts stbc stbs stcc stcp stcs stec stee steo step ster stes stet stib stic stie stio stip stir stis stit stob stoe stoo stop stor stos stot stpp stps strc stre stri stro strs stsi stss sttc sttr tbbs tbcb tbcc tbce tbit tbrb tbsp tbst tbtp tcbs tccc tcep tcos tcpo tctc tcts tebo teco tecr tecs tect teec teer tees teet teic teie teip teir teis teor teos tepe tepi tepp ter- terc tere teri tero terp terr ters tesc tese teso tesp tess test tete teti teto tetr tets tett tibi tibs ticc tice tico tics tie- tiee tiei tieo tiep tier ties tiet tiit tiop tios tip- tipc tipe tipi tipo tipp tips tipt tirb tire tiri tiro tirr tirs tisb tise tisi tiso tiss tist titc tite titi tito titp tits titt tobe tobi tobo tobs tobt toce toci toco toee toei