iers iesa iesc iesi iesr iest ieta ietf iett ifaa ifac ifae ifar ifas ifat ifer ifes ific ifis ifit ifra ifrf ifri ifsa ifsc ifta iiac iias iica iies iifa iiie iiii iiis iiit iira iirc iirs iisc iisi iisr iist iita iitr iitt irac irae iraf irai irar iras irca ircc ircs iree irer ires irfe iri- iria iric irie iris irra irrc irre irri irrs irsa irse irsf irta irte irtf irti irts is-a isac isae isaf isai isar isas isat isca iscc isci iscr iscs isct isea isec isee iser ises iset isfa isfc isia isic isie isis isit isra isri issa issc isse issf issi issr isss ista istc iste isti istr ists itaa itac itaf itai itar itas itat itcs itea itec iter ites itet itfa itia itic itie itif itis itra itrf itri itrs itsa itse itsf itsi itta ittf raaf raas raat rac- raca racc race raci racs ract raec raef raer raes rafa rafc rafe raff rafi raft raia raic raie raif raii rair rais rait rara rare rarf rari rars rasa rasc rase rasi rass rast rata rate ratf rati rats ratt rcac rcaf rcas rccc rccs rcet rcfc rcic rcis rcsa rcsc rcsi rcss rctc rcti rcts rea- reac reae reaf rear reas reat reca recc rece reci recr recs rect reef rees reet refe reff refi refr refs reft reia reif reii reir reis reit rera rere reri rers rert resa rese resi ress rest reta rete reti retr rets rett rfae rfef rffc rfic rftc riaa riai rias riat rica ricc rice rics rict rief rier ries riet rifa rife riff rifs rift riia riif riis rire riri rirs risa risc rise risi riss rist rita rite riti rits ritt rras rrat rrfc rrif rrrr rsaa rsaf rsai rscc rscs rsee rsfc rsis rsre rssa rsts rtai rtas rtca rtcc rtce rtee rtei rtes rtfc rtss rtts s-ic s-ii sa-c saac saae saaf saar saas saat saca sacc sace saci sacr sacs sact saer saes safa safc safe saff safi safr saft saia saic saie saif sair sais sait sara sarc sare sarf sari sarr sars sart sasa sasc sase sasf sasi sass sast sata satc sate sati satr sats satt scaa scac scaf scai scar scas scat sccc scce sccs scct scea scec scee scer scet scfa scfc scfe scfi sci- scia scic scie scif scir scis scit scr- scra scrc scre scri scrs scsa scsc scsi scsr scst sctc sctr scts se-c se-e se-f se-i se-s se-t seaa seac seaf sear seas seat sec- seca secc sece secr secs sect seea seec seef seer sees seet sefa seff sefi seft seia seie seif seii seir seis seit sera serc sere serf seri serr sers sert sesa sesc sese sesi sess sest set- seta setc sete setf seti sets sett sfar sfas sfca sfcc sfcs sfer sffc sfia sfra sfrc sfss sfts siaa siac siae siaf siai sias siat sica sicc sice sici sics siec sief sier sies sifa sife siff sifr sift siit sira sirc sire sirf siri sirr sirs sirt sisa sisc sise sisi siss sist sit- sita sitc site siti sits sitt sraf sras srcc srct srec sres srfc srfi sris srta srtr ssaa ssac ssas ssat ssca sscc ssce ssci sscs ssec ssee sses sset ssfc ssis ssit ssra ssrc ssri ssrs sssa sssc sssf sssi ssss ssta sstc ssts stac stae stai star stas stat stca stcc stcs stea stec stee stef ster stes stet stfc stia stic stie stif stir stis stit stra strc stre stri strs stsf stsi stss sttc sttr taa- taaf taar taas taat taca tacc tace taci tacs tact taec taer taes tafa tafc tafe taff tafi taft taia tair tais tait tara tarc tare tarf tari tarr tars tart tasa tasc tase tasi tasr tass tast tata tate tati tatr tats tatt tcca tccc tcfc tctc tcts teac tear teas teat teca tecr tecs tect teec teef teer tees teet tefc teff tefi teft teia teic teie teir teis ter- tera terc tere terf teri terr ters tesa tesc tese tess test teta tete teti tetr tets tett tfae tfca tfec tfrs tfsi tfss tftc tiaa tiaf tiar tias tica ticc tice tics tie- tiea tiee tief tiei tier ties tiet tifa tiff tift tiit tira tire tiri tirr tirs tisa tise tisi tiss tist tita titc tite titi tits titt traa trac trae traf trai tras trat trca trcc tre- trea trec tree tref trei tres tret trfc trfr tri- tria tric trie trif tris trit trra trsi trst trtc trte trtr tsaa tsai tsar tsat tsca tscc tsec tses tset tsfc tsia tsis tssa tsse tssf tssi tssr tsst tstc tsts tter ttfa ttfc ttff ttss tttt