-er -th c-- ccc cce cch cck cco ccp ccr ccs cct ce- cec cee ceh cek ceo cep cer ces cet ch- chc che chh chk cho chp chr chs cht ckc ckh cko cks ckt co- coc coe coh cok coo cop cor cos cot cpc cpe cph cpk cpo cpp cpr cps cpt crc cre crh crk cro crp crr crs crt csc cse csh csk cso csp csr css cst ctc cte cth ctk cto ctp ctr cts ctt ec- ecc ece ech eck eco ecr ecs ect eec eee eek eeo eep eer ees eet ehc ehe ehh eho ehp ehr ehs eht ekc eke ekh eko ekp ekr eks ekt eo- eoc eoe eoh eok eoo eop eor eos eot ep- epc epe eph epo epp epr eps ept erc ere erh erk ero erp err ers ert es- esc ese esh esk eso esp esr ess est etc ete eth etk eto etp etr ets ett hcc hce hch hck hco hcp hcr hcs hct he- hec hee heh hek heo hep her hes het hhc hhe hhh hhk hho hhp hhr hhs hht hkh hkk hko hkp hkr hks hkt hoc hoe hoh hok hoo hop hor hos hot hpc hpe hph hpk hpo hpp hpr hps hpt hr- hrc hre hrh hrk hro hrp hrr hrs hrt hsc hse hsh hsk hsp hsr hss hst htc hte hth htk hto htp htr hts htt k-t kcc kce kch kck kcp kcr kcs kct ke- kec kee keh kek keo kep ker kes ket khe khh khk kho khr khs kkc kke kkh kkk kkp kkr kks kkt koc koe koh kok koo kop kor kos kot kpc kpe kph kpk kpo kpp kpr kps kpt krc krk kro krp krr krs krt ksc kse ksh ksk kso ksp ksr kss kst ktc kte kth ktk kto ktp ktr kts ktt oc- occ och ock oco ocp ocr ocs oct oec oee oeh oeo oep oer oes oet ohc ohe ohh oho ohp ohr ohs oht okc oke okk oko okp okr oks oo- ooc ooh ook ooo oop oor oos oot op- opc ope oph opk opo opp opr ops opt or- orc ore orh ork oro orp orr ors ort os- osc ose osh osk oso osp osr oss ost ot- otc ote oth otk oto otp otr ots ott p-p pcc pce pch pck pco pcp pcr pcs pct pec pee peh pek peo pep per pes pet phc phe phk pho php phr phs pht pkc pke pko pkp pkr pks pkt poc poe poh pok poo pop por pos pot ppc ppe pph ppk ppo ppp ppr pps ppt prc pre prh prk pro prp prr prs prt ps- psc pse psh psk pso psp psr pss pst pt- ptc pte pth ptk pto ptp ptr pts ptt rcc rce rch rco rcp rcr rcs rct re- rec ree reh rek reo rep rer res ret rh- rhc rhe rhh rho rhp rhr rhs rht rkc rke rkk rko rkp rks rkt roc roe roh rok roo rop ror ros rot rpc rpe rph rpk rpo rpp rpr rps rpt rrc rrh rrk rrp rrr rrs rrt rsc rse rsh rsk rso rsp rsr rss rst rtc rte rtk rto rtp rtr rts rtt scc sce sch sck sco scp scr scs sct se- sec see seh sek seo sep ser ses set sh- shc she shh shk sho shp shr shs sht sk- skc ske skh skk sko skp skr sks skt soc soe soh sok soo sop sor sos sot spc spe sph spk spo spp spr sps spt sr- src sre srh srk sro srp srr srs srt ss- ssc sse ssh ssk sso ssp ssr sss sst stc ste sth stk sto stp str sts stt tcc tce tch tck tco tcp tcr tcs tct te- tec tee teh tek teo tep ter tes tet th- thc the thh thk tho thp thr ths tht tkc tke tkk tko tkp tkr tks tkt to- toc toe toh tok too top tor tos tot tpc tpe tph tpk tpo tpp tpr tps tpt trc tre trh trk tro trp trr trs trt tsc tse tsh tsk tso tsp tsr tss tst ttc tte tth ttk tto ttp ttr tts ttt