-er -ic c-- ccc ccd cce cci cck ccm cco ccr ccs cct cdc cdd cde cdi cdk cdm cdo cdr cds cdt ce- cec ced cee cei cek cem ceo cer ces cet ci- cic cid cie cii cik cim cio cir cis cit ckc ckd cki ckm cko cks ckt cmc cmd cme cmi cmk cmm cmo cmr cms cmt co- coc cod coe coi cok com coo cor cos cot crc crd cre cri crk crm cro crr crs crt csc csd cse csi csk csm cso csr css cst ctc ctd cte cti ctk ctm cto ctr cts ctt dcc dcd dce dci dck dcm dco dcr dcs dct ddc ddd dde ddi ddk ddm ddo ddr dds ddt de- dec ded dee dei dek dem deo der des det di- dic did die dii dik dim dio dir dis dit dkc dke dki dkk dkm dko dkr dks dkt dmc dmd dme dmi dmk dmm dmo dmr dms dmt doc dod doe doi dok dom doo dor dos dot drc drd dre dri drk drm dro drr drs drt dsc dsd dse dsi dsk dsm dso dsr dss dst dtc dtd dte dti dtk dtm dto dtr dts dtt ec- ecc ecd ece eci eck ecm eco ecr ecs ect ed- edc edd ede edi edk edm edo edr eds edt eec eed eee eek eem eeo eer ees eet eic eid eie eii eik eim eio eir eis eit ekc ekd eke eki eko ekr eks ekt em- emc emd eme emi emk emm emo emr ems emt eo- eoc eod eoe eoi eok eom eoo eor eos eot erc erd ere eri erk erm ero err ers ert es- esc esd ese esi esk esm eso esr ess est etc etd ete eti etk etm eto etr ets ett i-d icc icd ice ici ick icm ico icr ics ict idc idd ide idi idk idm ido idr ids idt ie- iec ied iee iei iek iem ier ies iet iic iid iie iii iim iio iir iis iit ikc ike iki ikk iko ikr iks ikt im- imc imd ime imi imm imo ims imt io- ioc iod ioe ioi iom ioo ior ios iot ir- irc ird ire iri irk irm iro irr irs irt is- isc isd ise isi isk ism iso isr iss ist itc itd ite iti itk itm ito its itt k-t kcc kcd kce kci kck kcm kcr kcs kct kdc kde kdk kdm kdo kdr kds kdt ke- kec ked kee kei kek kem keo ker kes ket kic kid kie kii kik kim kio kir kis kit kkc kke kki kkk kkm kkr kks kkt kmc kmd kme kmi kmk kmm kmo kms kmt koc kod koe koi kok kom koo kor kos kot krc krd kri krk kro krr krs krt ksc ksd kse ksi ksk ksm kso ksr kss kst ktc kte ktk ktm kto ktr kts ktt m-o m-r mc- mcc mcd mce mci mck mcm mco mcr mcs mct mdc mdd mde mdi mdk mdm mdo mdr mds mdt mec med mee mei mek mem meo mer mes met mi- mic mid mie mii mik mim mio mir mis mit mkc mkd mke mkk mkm mko mkr mks mkt mmc mmd mme mmi mmk mmm mmo mmr mms mmt moc mod moe moi mok mom moo mor mos mot mrc mrd mre mri mrk mrm mro mrr mrs mrt msc msd mse msi msk msm mso msr mss mst mtc mtd mte mti mtk mtm mto mtr mts mtt o-i oc- occ ocd oci ock ocm oco ocr ocs oct odc odd ode odi odm odo odr ods odt oec oed oee oei oem oeo oer oes oet oic oid oie oii oik oim oio oir ois oit okc okd oke oki okk oko okr oks om- omc omd ome omi omm omo omr oms omt oo- ooc ood ooi ook oom ooo oor oos oot or- orc ord ore ori ork orm oro orr ors ort os- osc osd ose osi osk osm oso osr oss ost ot- otc otd ote oti otk otm oto otr ots ott rcc rcd rce rci rcm rco rcr rcs rct rdc rdd rde rdi rdm rdo rdr rds rdt re- rec red ree rei rek rem reo rer res ret ric rid rie rii rik rim rio rir ris rit rkc rke rkk rkm rko rks rkt rmc rmd rme rmi rmm rmo rmr rms rmt roc rod roe roi rok rom roo ror ros rot rrc rrd rri rrk rrm rrr rrs rrt rsc rsd rse rsi rsk rsm rso rsr rss rst rtc rtd rte rti rtk rtm rto rtr rts rtt scc scd sce sci sck scm sco scr scs sct sdc sdd sde sdi sdk sdm sdo sdr sds sdt se- sec sed see sei sek sem seo ser ses set sic sid sie sii sik sim sio sir sis sit sk- skc skd ske ski skk skm sko skr sks skt smc smd sme smi smk smm smo smr sms smt soc sod soe soi sok som soo sor sos sot sr- src srd sre sri srk srm sro srr srs srt ss- ssc ssd sse ssi ssk ssm sso ssr sss sst stc std ste sti stk stm sto str sts stt tcc tcd tce tci tck tcm tco tcr tcs tct tdc tdd tde tdi tdk tdm tdo tdr tds tdt te- tec ted tee tei tek tem teo ter tes tet tic tid tie tii tik tim tio tir tis tit tkc tke tkk tkm tko tkr tks tkt tmc tmd tme tmi tmk tmm tmo tmr tms tmt to- toc tod toe toi tok tom too tor tos tot trc trd tre tri trk trm tro trr trs trt tsc tsd tse tsi tsk tsm tso tsr tss tst ttc ttd tte tti ttk ttm tto ttr tts ttt