-er -ic c-- ccc cce cch cci cck cco ccr ccs ccv ce- cec cee ceh cei cek ceo cer ces cev ch- chc che chh chi chk cho chr chs chv ci- cic cie cih cii cik cio cir cis civ ckc ckh cki cko cks co- coc coe coh coi cok coo cor cos cov crc cre crh cri crk cro crr crs crv csc cse csh csi csk cso csr css csv cvc cve cvh cvi cvk cvo cvr cvs cvv ec- ecc ece ech eci eck eco ecr ecs ecv eec eee eek eeo eer ees eev ehc ehe ehh ehi eho ehr ehs ehv eic eie eii eik eio eir eis eiv ekc eke ekh eki eko ekr eks ekv eo- eoc eoe eoh eoi eok eoo eor eos erc ere erh eri erk ero err ers erv es- esc ese esh esi esk eso esr ess esv evc eve evh evi evo evr evs evv h-i hcc hce hch hci hck hco hcr hcs hcv he- hec hee heh hei hek heo her hes hev hhc hhe hhh hhi hhk hho hhr hhs hhv hic hie hih hii hik hio hir his hiv hkh hki hkk hko hkr hks hoc hoe hoh hoi hok hoo hor hos hov hr- hrc hre hrh hri hrk hro hrr hrs hrv hsc hse hsh hsi hsk hsr hss hsv hv- hvc hvk hvo hvr hvs hvv i-v icc ice ich ici ick ico icr ics icv ie- iec iee iei iek ier ies iev ihc ihe ihh ihi ihk iho ihr ihs ihv iic iie iih iii iio iir iis ikc ike iki ikk iko ikr iks ikv io- ioc ioe ioh ioi ioo ior ios iov ir- irc ire iri irk iro irr irs irv is- isc ise ish isi isk iso isr iss isv ivc ive ivi ivo ivr ivs ivv kcc kce kch kci kck kcr kcs ke- kec kee keh kei kek keo ker kes kev khe khh khi khk kho khr khs khv kic kie kih kii kik kio kir kis kiv kkc kke kkh kki kkk kkr kks kkv koc koe koh koi kok koo kor kos krc kri krk kro krr krs krv ksc kse ksh ksi ksk kso ksr kss ksv kvh kvi kvk kvo kvr kvs kvv o-i oc- occ och oci ock oco ocr ocs ocv oec oee oeh oei oeo oer oes ohc ohe ohh ohi oho ohr ohs oic oie oii oik oio oir ois oiv okc oke oki okk oko okr oks oo- ooc ooh ooi ook ooo oor oos oov or- orc ore orh ori ork oro orr ors orv os- osc ose osh osi osk oso osr oss osv ov- ovc ove ovh ovi ovo ovs ovv rcc rce rch rci rco rcr rcs rcv re- rec ree reh rei rek reo rer res rev rh- rhc rhe rhh rhi rho rhr rhs rhv ric rie rih rii rik rio rir ris riv rkc rke rkk rko rks rkv roc roe roh roi rok roo ror ros rov rrc rrh rri rrk rrr rrs rsc rse rsh rsi rsk rso rsr rss rsv rvc rve rvh rvi rvo rvr rvs rvv scc sce sch sci sck sco scr scs scv se- sec see seh sei sek seo ser ses sev sh- shc she shh shi shk sho shr shs shv sic sie sih sii sik sio sir sis siv sk- skc ske skh ski skk sko skr sks soc soe soh soi sok soo sor sos sov sr- src sre srh sri srk sro srr srs srv ss- ssc sse ssh ssi ssk sso ssr sss ssv svc sve svi svk svo svr svs svv v-e vcc vce vch vci vco vcr vcs vec vee veh vei vek veo ver ves vh- vhc vhe vhi vho vhs vi- vic vie vii vik vio vir vis viv voc voe voh voi vok voo vor vos vov vrc vre vrh vri vrk vrr vrs vsc vse vsh vsi vsk vso vsr vss vsv vvc vvi vvo vvr vvs vvv