-er -ic c-- ccc cce ccg cci ccn cco ccr ccs cct ce- cec cee ceg cei cen ceo cer ces cet cgc cge cgg cgi cgn cgo cgr cgs cgt ci- cic cie cig cii cin cio cir cis cit cn- cnc cne cng cni cnn cno cnr cns cnt co- coc coe cog coi con coo cor cos cot crc cre crg cri crn cro crr crs crt csc cse csg csi csn cso csr css cst ctc cte ctg cti ctn cto ctr cts ctt ec- ecc ece ecg eci ecn eco ecr ecs ect eec eee eeg een eeo eer ees eet egc ege egg egi egn ego egr egs egt eic eie eig eii ein eio eir eis eit en- enc ene eng eni enn eno enr ens ent eo- eoc eoe eog eoi eon eoo eor eos eot erc ere erg eri ern ero err ers ert es- esc ese esg esi esn eso esr ess est etc ete etg eti etn eto etr ets ett gcc gce gcg gci gcn gco gcr gcs gct ge- gec gee geg gei gen geo ger ges get ggc ggg ggi ggn ggo ggr ggs ggt gic gie gig gii gin gio gir gis git gnc gne gni gnn gno gnr gns gnt goc goe gog goi gon goo gor gos got grc gre grg gri grn gro grr grs grt gsc gse gsg gsi gsn gso gsr gss gst gtc gte gtg gti gtn gto gtr gts gtt icc ice icg ici icn ico icr ics ict ie- iec iee ieg iei ien ier ies iet igc ige igg igi ign igo igr igs igt iic iie iii iin iio iir iis iit in- inc ine ing ini inn ino inr ins int io- ioc ioe iog ioi ion ioo ior ios iot ir- irc ire irg iri irn iro irr irs irt is- isc ise isg isi isn iso isr iss ist itc ite itg iti itn ito its itt n-i ncc nce ncg nci ncn nco ncr ncs nct ne- nec nee neg nei nen neo ner nes net ngc nge ngg ngi ngn ngo ngs ngt nic nie nig nii nin nio nir nis nit nnc nne nng nni nnn nno nns nnt no- noc noe nog noi non noo nor nos not nrc nre nrg nri nrn nro nrr nrs nrt nsc nse nsg nsi nsn nso nsr nss nst ntc nte ntg nti ntn nto ntr nts ntt o-i oc- occ ocg oci 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 oin oio oir ois oit on- onc one ong oni onn ono onr ons ont oo- ooc oog ooi oon ooo oor oos oot or- orc ore org ori orn oro orr ors ort os- osc ose osg osi osn oso osr oss ost ot- otc ote otg oti otn oto otr ots ott rcc rce rcg rci rcn rco rcr rcs rct re- rec ree reg rei ren reo rer res ret rgc rge rgg rgi rgn rgo rgr rgs rgt ric rie rig rii rin rio rir ris rit rnc rng rni rnn rno rnr rns rnt roc roe rog roi ron roo ror ros rot rrc rrg rri rrn rrr rrs rrt rsc rse rsg rsi rsn rso rsr rss rst rtc rte rtg rti rtn rto rtr rts rtt scc sce scg sci scn sco scr scs sct se- sec see seg sei sen seo ser ses set sgc sge sgg sgi sgn sgo sgr sgs sgt sic sie sig sii sin sio sir sis sit snc sne sng sni snn sno snr sns snt soc soe sog soi son soo sor sos sot sr- src sre srg sri srn sro srr srs srt ss- ssc sse ssg ssi ssn sso ssr sss sst stc ste stg sti stn sto str sts stt tcc tce tcg tci tcn tco tcr tcs tct te- tec tee teg tei ten teo ter tes tet tgc tge tgg tgi tgn tgo tgr tgs tgt tic tie tig tii tin tio tir tis tit tnc tne tng tni tnn tno tnr tns tnt to- toc toe tog toi ton too tor tos tot trc tre trg tri trn tro trr trs trt tsc tse tsg tsi tsn tso tsr tss tst ttc tte ttg tti ttn tto ttr tts ttt