-er -ic c-- ccc cce cci cck cco ccr ccs ce- cec cee cei cek ceo cer ces ci- cic cie cii cik cio cir cis ckc cki cko cks co- coc coe coi cok coo cor cos crc cre cri crk cro crr crs csc cse csi csk cso csr css ec- ecc ece eci eck eco ecr ecs eec eee eek eeo eer ees eic eie eii eik eio eir eis ekc eke eki eko ekr eks eo- eoc eoe eoi eok eoo eor eos erc ere eri erk ero err ers es- esc ese esi esk eso esr ess icc ice ici ick ico icr ics ie- iec iee iei iek ier ies iic iie iii iio iir iis ikc ike iki ikk iko ikr iks io- ioc ioe ioi ioo ior ios ir- irc ire iri irk iro irr irs is- isc ise isi isk iso isr iss kcc kce kci kck kcr kcs ke- kec kee kei kek keo ker kes kic kie kii kik kio kir kis kkc kke kki kkk kkr kks koc koe koi kok koo kor kos krc kri krk kro krr krs ksc kse ksi ksk kso ksr kss o-i oc- occ oci ock oco ocr ocs oec oee oei oeo oer oes oic oie oii oik oio oir ois okc oke oki okk oko okr oks oo- ooc ooi ook ooo oor oos or- orc ore ori ork oro orr ors os- osc ose osi osk oso osr oss rcc rce rci rco rcr rcs re- rec ree rei rek reo rer res ric rie rii rik rio rir ris rkc rke rkk rko rks roc roe roi rok roo ror ros rrc rri rrk rrr rrs rsc rse rsi rsk rso rsr rss scc sce sci sck sco scr scs se- sec see sei sek seo ser ses sic sie sii sik sio sir sis sk- skc ske ski skk sko skr sks soc soe soi sok soo sor sos sr- src sre sri srk sro srr srs ss- ssc sse ssi ssk sso ssr sss

-ose cccc ccci cccs ccee ccic ccii ccir ccis ccoc ccrc ccre ccri ccrs ccsi ccss cec- cece ceci ceco cecs ceec cees ceke ceor ceos cer- cerc cere ceri cero cers cesc cese cesi cesr cess cicc cici cico cicr cics ciee cier cies ciii ciis ciko cikr cior cios circ cire ciri cirk ciro cirr cirs cis- cisc cise cisk cisr ciss ckck ckco ckcs cker ckoc ckoi ckoo ckor ckos ckrc ckso coce cock coco coes coir cois cok- coke coko cook coos cor- corc core cori cork coro corr cors cosc cose cosi coso coss crcc crce crcr cre- crec cree crei creo cres cric crie crik cris crkc croc croe crok croo cror crss cscc csce csci csco cscr cscs csec csee cser csik csio csir csis csks csor csos csrc csrs csse cssr eccc ecce ecci ecco eces ecis ecko ecks eco- ecos ecrc ecri ecrr ecsc ecse ecss eecs eeee eees eeke eeks eeoc eerc eero eers eese eesi eesk eick eico eics eiec eiei eier eies eike eiki eiko eiks eire eirs eise eisk eiso eiss ekco ekek eker ekes ekis ekki ekoi ekos eksi eoes eoir eois eore eori ercc erce erec erei erer eres eric erie erik erio eris erke erki erks eroc eroe eroi eroo eros errc erre erro errs erse ersi erso esce esci esco escr escs esee esek eseo eser eses esie esik esis eske esko esks eso- esok esos esri esse essi esso iccc icci icco iccr iccs icec icee icer ices icis icke icks icoc icor icos icrc icre icrr icrs icsc icse icsi icsr icss iecc ieie ieio iere ieri iers iesc iesi ieso iesr iies iiie iiii iiio iiis iioi iioo iios iirc iirs iisc iisi iisr ikee iker ikes ikki ikko ikoo ikri ioci ioee ioii ioio ioke ioko iooi iooo ioos iore iori iors ioso ircc ircs iree irer ires iri- iric irie irio iris irki irks iroc irrc irre irri irrs irse iscc isci isco iscr iscs isec isee iseo iser ises isic isie isis isko iso- isoc isok isor isos isri issc isse issi isso issr isss k-ci k-os kccc kcci kcck kccr kcec kcee kcei kceo kcic kcie kcii kcir kcis kckc kckk kcko kckr kcoe kcor kcos kcrc kcri kcro kcrr kcrs kcsc kcse kcsi kcsr kcss keck keco kecr keek keer kees keii keik keio keir keis kekc keke keki keko keks keok keos ker- kerc kere keri kerk kero kerr kers kesc kesi kesk keso kesr kess kicc kice kick kicr kics kier kies kiic kiii kiik kiis kikc kiki kikk kiko kikr kioc kioe kioi kiok kioo kirc kiri kirk kiro kirr kirs kisc kise kisi kisk kiso kisr kiss kkci kkck kkco kkcr kkcs kkic kkik kkkk kkoo kkor kkrc kkre kkrk kkro kkrr kkrs kkse kksi kksr kkss koci kock kocs koei koes koii koir kokc koke koki kokk koko kokr koks kooc kooi kook kooo koor koos korc kore kori kork koro korr kors kos- kosc kose kosi koso kosr koss krcc krce krci krco krcs krec kree krei krek kreo kres krik krio kris krkc krke krki krkk krko krkr krks kroc kroe kroi krok kroo kror kros krrc krre krri krrk krro krrr krrs krsc krse krsk krsr krss ksce ksci ksck ksco kscr kscs ksec ksee ksei ksek kseo kser ksii ksik ksir ksis kske kskk ksko kskr ksks ksoc ksoi ksok ksoo ksor ksos ksro ksrr ksrs ksse kssi ksso kssr ksss o-eo occc occi oce ocee ocis ocke ocks ocos ocre ocro ocrr ocrs oec- oecc oeec oere oers oese oici oick oier oies oiii oike oiko oiks oios oire oisc oise oker okes okic okie okir okko okok okor okre okro oksi okso oocr ooer ooes oooo ooos oore oose oosi orce orci orco orcs ore- orec orek oreo orer ores ori- oric orie orio oris orke