-er c-- ccc cce ccg ccn cco ccp ccr ccs cct ce- cec cee ceg cen ceo cep cer ces cet cgc cge cgg cgn cgo cgp cgr cgs cgt cn- cnc cne cng cnn cno cnp cnr cns cnt co- coc coe cog con coo cop cor cos cot cpc cpe cpg cpn cpo cpp cpr cps cpt crc cre crg crn cro crp crr crs crt csc cse csg csn cso csp csr css cst ctc cte ctg ctn cto ctp ctr cts ctt ec- ecc ece ecg ecn eco ecr ecs ect eec eee eeg een eeo eep eer ees eet egc ege egg egn ego egp egr egs egt en- enc ene eng enn eno enp enr ens ent eo- eoc eoe eog eon eoo eop eor eos eot ep- epc epe epg epn epo epp epr eps ept erc ere erg ern ero erp err ers ert es- esc ese esg esn eso esp esr ess est etc ete etg etn eto etp etr ets ett g-p gcc gce gcg gcn gco gcp gcr gcs gct ge- gec gee geg gen geo gep ger ges get ggc ggg ggn ggo ggp ggr ggs ggt gnc gne gnn gno gnp gnr gns gnt goc goe gog gon goo gop gor gos got gpc gpe gpg gpn gpo gpp gpr gps gpt grc gre grg grn gro grp grr grs grt gsc gse gsg gsn gso gsp gsr gss gst gtc gte gtg gtn gto gtp gtr gts gtt ncc nce ncg ncn nco ncp ncr ncs nct ne- nec nee neg nen neo nep ner nes net ngc nge ngg ngn ngo ngp ngs ngt nnc nne nng nnn nno nnp nns nnt no- noc noe nog non noo nop nor nos not npc npe npg npn npo npp npr nps npt nrc nre nrg nrn nro nrp nrr nrs nrt nsc nse nsg nsn nso nsp nsr nss nst ntc nte ntg ntn nto ntp ntr nts ntt oc- occ ocg ocn oco ocp ocr ocs oct oec oee oeg oen oeo oep oer oes oet ogc oge ogg ogn ogo ogp ogs ogt on- onc one ong onn ono onp onr ons ont oo- ooc oog oon ooo oop oor oos oot op- opc ope opg opn opo opp opr ops opt or- orc ore org orn oro orp orr ors ort os- osc ose osg osn oso osp osr oss ost ot- otc ote otg otn oto otp otr ots ott p-p pcc pce pcg pcn pco pcp pcr pcs pct pec pee peg pen peo pep per pes pet pgc pge pgg pgn pgo pgp pgr pgs pgt pn- pnc pne png pnn pno pnp pnr pns pnt poc poe pog pon poo pop por pos pot ppc ppe ppg ppn ppo ppp ppr pps ppt prc pre prg prn pro prp prr prs prt ps- psc pse psg psn pso psp psr pss pst pt- ptc pte ptg ptn pto ptp ptr pts ptt rcc rce rcg rcn rco rcp rcr rcs rct re- rec ree reg ren reo rep rer res ret rgc rge rgg rgn rgo rgp rgr rgs rgt rnc rng rnn rno rnp rnr rns rnt roc roe rog ron roo rop ror ros rot rpc rpe rpg rpn rpo rpp rpr rps rpt rrc rrg rrn rrp rrr rrs rrt rsc rse rsg rsn rso rsp rsr rss rst rtc rte rtg rtn rto rtp rtr rts rtt scc sce scg scn sco scp scr scs sct se- sec see seg sen seo sep ser ses set sgc sge sgg sgn sgo sgp sgr sgs sgt snc sne sng snn sno snp snr sns snt soc soe sog son soo sop sor sos sot spc spe spg spn spo spp spr sps spt sr- src sre srg srn sro srp srr srs srt ss- ssc sse ssg ssn sso ssp ssr sss sst stc ste stg stn sto stp str sts stt tcc tce tcg tcn tco tcp tcr tcs tct te- tec tee teg ten teo tep ter tes tet tgc tge tgg tgn tgo tgp tgr tgs tgt tnc tne tng tnn tno tnp tnr tns tnt to- toc toe tog ton too top tor tos tot tpc tpe tpg tpn tpo tpp tpr tps tpt trc tre trg trn tro trp trr trs trt tsc tse tsg tsn tso tsp tsr tss tst ttc tte ttg ttn tto ttp ttr tts ttt