-er -ic c-- ccc cce ccg cci cck ccn cco ccr ccv ce- cec cee ceg cei cek cen ceo cer cev cgc cge cgg cgi cgn cgo cgr cgv ci- cic cie cig cii cik cin cio cir civ ckc cki cko cn- cnc cne cng cni cnn cno cnr cnv co- coc coe cog coi cok con coo cor cov crc cre crg cri crk crn cro crr crv cvc cve cvg cvi cvk cvn cvo cvr cvv ec- ecc ece ecg eci eck ecn eco ecr ecv eec eee eeg eek een eeo eer eev egc ege egg egi egn ego egr eic eie eig eii eik ein eio eir eiv ekc eke ekg eki eko ekr ekv en- enc ene eng eni enk enn eno enr env eo- eoc eoe eog eoi eok eon eoo eor erc ere erg eri erk ern ero err erv evc eve evg evi evn evo evr evv gcc gce gcg gci gck gcn gco gcr ge- gec gee geg gei gek gen geo ger gev ggc ggg ggi ggn ggo ggr ggv gic gie gig gii gik gin gio gir giv gkn gko gnc gne gni gnn gno gnr gnv goc goe gog goi gok gon goo gor gov grc gre grg gri grk grn gro grr grv gvc gve gvg gvi gvk gvn gvo gvr i-v icc ice icg ici ick icn ico icr icv ie- iec iee ieg iei iek ien ier iev igc ige igg igi igk ign igo igr iic iie iii iin iio iir ikc ike iki ikk iko ikr ikv in- inc ine ing ini ink inn ino inr inv io- ioc ioe iog ioi ion ioo ior iov ir- irc ire irg iri irk irn iro irr irv ivc ive ivg ivi ivo ivr ivv kcc kce kcg kci kck kcn kcr ke- kec kee keg kei kek ken keo ker kev kgc kgi kgo kgv kic kie kig kii kik kin kio kir kiv kkc kke kki kkk kkn kkr kkv kn- knc kne kng kni knk knn kno knr koc koe kog koi kok kon koo kor krc krg kri krk krn kro krr krv kvi kvk kvn kvo kvr kvv n-i ncc nce ncg nci nck ncn nco ncr ncv ne- nec nee neg nei nek nen neo ner nev ngc nge ngg ngi ngk ngn ngo nic nie nig nii nik nin nio nir niv nkc nke nki nkk nkn nko nkr nnc nne nng nni nnk nnn nno nnv no- noc noe nog noi nok non noo nor nov nrc nre nrg nri nrk nrn nro nrr nrv nvc nve nvg nvi nvk nvn nvv o-i oc- occ ocg oci ock ocn oco ocr ocv oec oee oeg oei oen oeo oer ogc oge ogg ogi ogn ogo oic oie oii oik oin oio oir oiv okc oke okg oki okk oko okr on- onc one ong oni onk onn ono onr oo- ooc oog ooi ook oon ooo oor oov or- orc ore org ori ork orn oro orr orv ov- ovc ove ovi ovo ovv rcc rce rcg rci rcn rco rcr rcv re- rec ree reg rei rek ren reo rer rev rgc rge rgg rgi rgk rgn rgo rgr rgv ric rie rig rii rik rin rio rir riv rkc rke rkg rkk rko rkv rnc rng rni rnn rno rnr rnv roc roe rog roi rok ron roo ror rov rrc rrg rri rrk rrn rrr rvc rve rvg rvi rvn rvo rvr rvv v-e vcc vce vci vcn vco vcr vec vee veg vei vek ven veo ver vgc vgg vgn vgo vgr vi- vic vie vig vii vik vin vio vir viv vkg vn- vng vni vno vnr vnv voc voe vog voi vok von voo vor vov vrc vre vrg vri vrk vrn vrr vvc vvg vvi vvo vvr vvv