-er -ic c-- ccc cce ccg cci ccm cco ccp ccr ccs ce- cec cee ceg cei cem ceo cep cer ces cgc cge cgg cgi cgm cgo cgp cgr cgs ci- cic cie cig cii cim cio cip cir cis cmc cme cmg cmi cmm cmo cmp cmr cms co- coc coe cog coi com coo cop cor cos cpc cpe cpg cpi cpm cpo cpp cpr cps crc cre crg cri crm cro crp crr crs csc cse csg csi csm cso csp csr css ec- ecc ece ecg eci ecm eco ecr ecs eec eee eeg eem eeo eep eer ees egc ege egg egi egm ego egp egr egs eic eie eig eii eim eio eip eir eis em- emc eme emg emi emm emo emp emr ems eo- eoc eoe eog eoi eom eoo eop eor eos ep- epc epe epg epi epm epo epp epr eps erc ere erg eri erm ero erp err ers es- esc ese esg esi esm eso esp esr ess g-p gcc gce gcg gci gcm gco gcp gcr gcs ge- gec gee geg gei gem geo gep ger ges ggc ggg ggi ggm ggo ggp ggr ggs gic gie gig gii gim gio gip gir gis gmc gme gmg gmi gmm gmo gmp gmr gms goc goe gog goi gom goo gop gor gos gpc gpe gpg gpi gpm gpo gpp gpr gps grc gre grg gri grm gro grp grr grs gsc gse gsg gsi gsm gso gsp gsr gss icc ice icg ici icm ico icp icr ics ie- iec iee ieg iei iem iep ier ies igc ige igg igi igm igo igp igr igs iic iie iii iim iio iip iir iis im- imc ime img imi imm imo imp ims io- ioc ioe iog ioi iom ioo iop ior ios ipc ipe ipg ipi ipm ipo ipp ipr ips ir- irc ire irg iri irm iro irp irr irs is- isc ise isg isi ism iso isp isr iss m-o m-r mc- mcc mce mcg mci mcm mco mcp mcr mcs mec mee meg mei mem meo mep mer mes mgc mge mgi mgm mgo mgp mgr mgs mi- mic mie mig mii mim mio mip mir mis mmc mme mmg mmi mmm mmo mmp mmr mms moc moe mog moi mom moo mop mor mos mpc mpe mpg mpi mpm mpo mpp mpr mps mrc mre mrg mri mrm mro mrp mrr mrs msc mse msg msi msm mso msp msr mss o-i oc- occ ocg oci ocm oco ocp ocr ocs oec oee oeg oei oem oeo oep oer oes ogc oge ogg ogi ogo ogp ogs oic oie oii oim oio oip oir ois om- omc ome omg omi omm omo omp omr oms oo- ooc oog ooi oom ooo oop oor oos op- opc ope opg opi opm opo opp opr ops or- orc ore org ori orm oro orp orr ors os- osc ose osg osi osm oso osp osr oss p-p pcc pce pcg pci pcm pco pcp pcr pcs pec pee peg pei pem peo pep per pes pgc pge pgg pgi pgm pgo pgp pgr pgs pic pie pig pii pim pio pip pir pis pmc pme pmg pmi pmm pmo pmp pmr pms poc poe pog poi pom poo pop por pos ppc ppe ppg ppi ppm ppo ppp ppr pps prc pre prg pri prm pro prp prr prs ps- psc pse psg psi psm pso psp psr pss rcc rce rcg rci rcm rco rcp rcr rcs re- rec ree reg rei rem reo rep rer res rgc rge rgg rgi rgo rgp rgr rgs ric rie rig rii rim rio rip rir ris rmc rme rmg rmi rmm rmo rmp rmr rms roc roe rog roi rom roo rop ror ros rpc rpe rpg rpi rpm rpo rpp rpr rps rrc rrg rri rrm rrp rrr rrs rsc rse rsg rsi rsm rso rsp rsr rss scc sce scg sci scm sco scp scr scs se- sec see seg sei sem seo sep ser ses sgc sge sgg sgi sgm sgo sgp sgr sgs sic sie sig sii sim sio sip sir sis smc sme smg smi smm smo smp smr sms soc soe sog soi som soo sop sor sos spc spe spg spi spm spo spp spr sps sr- src sre srg sri srm sro srp srr srs ss- ssc sse ssg ssi ssm sso ssp ssr sss