-er -ic c-- ccc cce ccg cci cck ccn cco ccr ccs cct ce- cec cee ceg cei cek cen ceo cer ces cet cgc cge cgg cgi cgn cgo cgr cgs cgt ci- cic cie cig cii cik cin cio cir cis cit ckc cki cko cks ckt cn- cnc cne cng cni cnn cno cnr cns cnt co- coc coe cog coi cok con coo cor cos cot crc cre crg cri crk crn cro crr crs crt csc cse csg csi csk csn cso csr css cst ctc cte ctg cti ctk ctn cto ctr cts ctt ec- ecc ece ecg eci eck ecn eco ecr ecs ect eec eee eeg eek een eeo eer ees eet egc ege egg egi egn ego egr egs egt eic eie eig eii eik ein eio eir eis eit ekc eke ekg eki eko ekr eks ekt en- enc ene eng eni enk enn eno enr ens ent eo- eoc eoe eog eoi eok eon eoo eor eos eot erc ere erg eri erk ern ero err ers ert es- esc ese esg esi esk esn eso esr ess est etc ete etg eti etk etn eto etr ets ett gcc gce gcg gci gck gcn gco gcr gcs gct ge- gec gee geg gei gek gen geo ger ges get ggc ggg ggi ggn ggo ggr ggs ggt gic gie gig gii gik gin gio gir gis git gkn gko gks gkt gnc gne gni gnn gno gnr gns gnt goc goe gog goi gok gon goo gor gos got grc gre grg gri grk grn gro grr grs grt gsc gse gsg gsi gsk gsn gso gsr gss gst gtc gte gtg gti gtk gtn gto gtr gts gtt icc ice icg ici ick icn ico icr ics ict ie- iec iee ieg iei iek ien ier ies iet igc ige igg igi igk ign igo igr igs igt iic iie iii iin iio iir iis iit ikc ike iki ikk iko ikr iks ikt in- inc ine ing ini ink inn ino inr ins int io- ioc ioe iog ioi ion ioo ior ios iot ir- irc ire irg iri irk irn iro irr irs irt is- isc ise isg isi isk isn iso isr iss ist itc ite itg iti itk itn ito its itt k-t kcc kce kcg kci kck kcn kcr kcs kct ke- kec kee keg kei kek ken keo ker kes ket kgc kgi kgo kgs kic kie kig kii kik kin kio kir kis kit kkc kke kki kkk kkn kkr kks kkt kn- knc kne kng kni knk knn kno knr knt koc koe kog koi kok kon koo kor kos kot krc krg kri krk krn kro krr krs krt ksc kse ksg ksi ksk ksn kso ksr kss kst ktc kte ktg ktk ktn kto ktr kts ktt n-i ncc nce ncg nci nck ncn nco ncr ncs nct ne- nec nee neg nei nek nen neo ner nes net ngc nge ngg ngi ngk ngn ngo ngs ngt nic nie nig nii nik nin nio nir nis nit nkc nke nki nkk nkn nko nkr nks nkt nnc nne nng nni nnk nnn nno nns nnt no- noc noe nog noi nok non noo nor nos not nrc nre nrg nri nrk nrn nro nrr nrs nrt nsc nse nsg nsi nsk nsn nso nsr nss nst ntc nte ntg nti ntk ntn nto ntr nts ntt o-i oc- occ ocg oci ock ocn oco ocr ocs oct oec oee oeg oei oen oeo oer oes oet ogc oge ogg ogi ogn ogo ogs ogt oic oie oii oik oin oio oir ois oit okc oke okg oki okk oko okr oks on- onc one ong oni onk onn ono onr ons ont oo- ooc oog ooi ook oon ooo oor oos oot or- orc ore org ori ork orn oro orr ors ort os- osc ose osg osi osk osn oso osr oss ost ot- otc ote otg oti otk otn oto otr ots ott rcc rce rcg rci rcn rco rcr rcs rct re- rec ree reg rei rek ren reo rer res ret rgc rge rgg rgi rgk rgn rgo rgr rgs rgt ric rie rig rii rik rin rio rir ris rit rkc rke rkg rkk rko rks rkt rnc rng rni rnn rno rnr rns rnt roc roe rog roi rok ron roo ror ros rot rrc rrg rri rrk rrn rrr rrs rrt rsc rse rsg rsi rsk rsn rso rsr rss rst rtc rte rtg rti rtk rtn rto rtr rts rtt scc sce scg sci sck scn sco scr scs sct se- sec see seg sei sek sen seo ser ses set sgc sge sgg sgi sgk sgn sgo sgr sgs sgt sic sie sig sii sik sin sio sir sis sit sk- skc ske skg ski skk sko skr sks skt snc sne sng sni snk snn sno snr sns snt soc soe sog soi sok son soo sor sos sot sr- src sre srg sri srk srn sro srr srs srt ss- ssc sse ssg ssi ssk ssn sso ssr sss sst stc ste stg sti stk stn sto str sts stt tcc tce tcg tci tck tcn tco tcr tcs tct te- tec tee teg tei tek ten teo ter tes tet tgc tge tgg tgi tgk tgn tgo tgr tgs tgt tic tie tig tii tik tin tio tir tis tit tkc tke tkg tkk tko tkr tks tkt tnc tne tng tni tnk tnn tno tnr tns tnt to- toc toe tog toi tok ton too tor tos tot trc tre trg tri trk trn tro trr trs trt tsc tse tsg tsi tsk tsn tso tsr tss tst ttc tte ttg tti ttk ttn tto ttr tts ttt