-er -ic -th c-- ccc cce cch cci cck cco ccr ccs cct ce- cec cee ceh cei cek ceo cer ces cet ch- chc che chh chi chk cho chr chs cht ci- cic cie cih cii cik cio cir cis cit ckc ckh cki cko cks ckt co- coc coe coh coi cok coo cor cos cot crc cre crh cri crk cro crr crs crt csc cse csh csi csk cso csr css cst ctc cte cth cti ctk cto ctr cts ctt ec- ecc ece ech eci eck eco ecr ecs ect eec eee eek eeo eer ees eet ehc ehe ehh ehi eho ehr ehs eht eic eie eii eik eio eir eis eit ekc eke ekh eki eko ekr eks ekt eo- eoc eoe eoh eoi eok eoo eor eos eot erc ere erh eri erk ero err ers ert es- esc ese esh esi esk eso esr ess est etc ete eth eti etk eto etr ets ett h-i hcc hce hch hci hck hco hcr hcs hct he- hec hee heh hei hek heo her hes het hhc hhe hhh hhi hhk hho hhr hhs hht hic hie hih hii hik hio hir his hit hkh hki hkk hko hkr hks hkt hoc hoe hoh hoi hok hoo hor hos hot hr- hrc hre hrh hri hrk hro hrr hrs hrt hsc hse hsh hsi hsk hsr hss hst htc hte hth hti htk hto htr hts htt icc ice ich ici ick ico icr ics ict ie- iec iee iei iek ier ies iet ihc ihe ihh ihi ihk iho ihr ihs iht iic iie iih iii iio iir iis iit ikc ike iki ikk iko ikr iks ikt io- ioc ioe ioh ioi ioo ior ios iot ir- irc ire iri irk iro irr irs irt is- isc ise ish isi isk iso isr iss ist itc ite ith iti itk ito its itt k-t kcc kce kch kci kck kcr kcs kct ke- kec kee keh kei kek keo ker kes ket khe khh khi khk kho khr khs kic kie kih kii kik kio kir kis kit kkc kke kkh kki kkk kkr kks kkt koc koe koh koi kok koo kor kos kot krc kri krk kro krr krs krt ksc kse ksh ksi ksk kso ksr kss kst ktc kte kth ktk kto ktr kts ktt o-i oc- occ och oci ock oco ocr ocs oct oec oee oeh oei oeo oer oes oet ohc ohe ohh ohi oho ohr ohs oht oic oie oii oik oio oir ois oit okc oke oki okk oko okr oks oo- ooc ooh ooi ook ooo oor oos oot or- orc ore orh ori ork oro orr ors ort os- osc ose osh osi osk oso osr oss ost ot- otc ote oth oti otk oto otr ots ott rcc rce rch rci rco rcr rcs rct re- rec ree reh rei rek reo rer res ret rh- rhc rhe rhh rhi rho rhr rhs rht ric rie rih rii rik rio rir ris rit rkc rke rkk rko rks rkt roc roe roh roi rok roo ror ros rot rrc rrh rri rrk rrr rrs rrt rsc rse rsh rsi rsk rso rsr rss rst rtc rte rti rtk rto rtr rts rtt scc sce sch sci sck sco scr scs sct se- sec see seh sei sek seo ser ses set sh- shc she shh shi shk sho shr shs sht sic sie sih sii sik sio sir sis sit sk- skc ske skh ski skk sko skr sks skt soc soe soh soi sok soo sor sos sot sr- src sre srh sri srk sro srr srs srt ss- ssc sse ssh ssi ssk sso ssr sss sst stc ste sth sti stk sto str sts stt tcc tce tch tci tck tco tcr tcs tct te- tec tee teh tei tek teo ter tes tet th- thc the thh thi thk tho thr ths tht tic tie tih tii tik tio tir tis tit tkc tke tkk tko tkr tks tkt to- toc toe toh toi tok too tor tos tot trc tre trh tri trk tro trr trs trt tsc tse tsh tsi tsk tso tsr tss tst ttc tte tth tti ttk tto ttr tts ttt