-er -ic a-a a-c a-i aaa aac aae aag aai aan aao aar aau ac- aca acc ace acg aci acn aco acr acu aea aec aee aeg aei aen aeo aer aeu ag- aga agc age agg agi agn ago agr agu ai- aia aic aie aig aii ain aio air aiu an- ana anc ane ang ani ann ano anr anu aoa aoc aoe aog aoi aon aoo aor aou ar- ara arc are arg ari arn aro arr aru au- aua auc aue aug aui aun auo aur c-- caa cac cae cag cai can cao car cau cca ccc cce ccg cci ccn cco ccr ccu ce- cea cec cee ceg cei cen ceo cer ceu cga cgc cge cgg cgi cgn cgo cgr cgu ci- cia cic cie cig cii cin cio cir ciu cn- cna cnc cne cng cni cnn cno cnr cnu co- coa coc coe cog coi con coo cor cou cra crc cre crg cri crn cro crr cru cua cuc cue cug cui cun cuo cur cuu eaa eac eae eag eai ean eao ear eau ec- eca ecc ece ecg eci ecn eco ecr ecu eea eec eee eeg een eeo eer ega egc ege egg egi egn ego egr egu eia eic eie eig eii ein eio eir eiu en- ena enc ene eng eni enn eno enr enu eo- eoa eoc eoe eog eoi eon eoo eor eou era erc ere erg eri ern ero err eru eu- eua euc eue eug eui eun eur gaa gac gae gag gai gan gao gar gau gca gcc gce gcg gci gcn gco gcr gcu ge- gea gec gee geg gei gen geo ger geu gga ggc ggg ggi ggn ggo ggr ggu gia gic gie gig gii gin gio gir giu gna gnc gne gni gnn gno gnr gnu goa goc goe gog goi gon goo gor gou gra grc gre grg gri grn gro grr gru gu- gua guc gue gug gui gun guo gur guu ia- iaa iac iae iag iai ian iao iar iau ica icc ice icg ici icn ico icr icu ie- iea iec iee ieg iei ien ier iga igc ige igg igi ign igo igr igu iia iic iie iii iin iio iir iiu in- ina inc ine ing ini inn ino inr inu io- ioa ioc ioe iog ioi ion ioo ior iou ir- ira irc ire irg iri irn iro irr iru iu- iua iuc iue iug iui iur n-i naa nac nae nag nai nan nao nar nau nca ncc nce ncg nci ncn nco ncr ncu ne- nea nec nee neg nei nen neo ner neu nga ngc nge ngg ngi ngn ngo ngu nia nic nie nig nii nin nio nir niu nna nnc nne nng nni nnn nno nnu no- noa noc noe nog noi non noo nor nou nra nrc nre nrg nri nrn nro nrr nru nua nuc nue nug nui nun nuo nur nuu o-i oaa oac oae oag oai oan oao oar oau oc- oca occ ocg oci ocn oco ocr ocu oea oec oee oeg oei oen oeo oer oga ogc oge ogg ogi ogn ogo oia oic oie oii oin oio oir oiu on- ona onc one ong oni onn ono onr onu oo- ooa ooc oog ooi oon ooo oor or- ora orc ore org ori orn oro orr oru ou- oua ouc oue oui oun ouo our ra- raa rac rae rag rai ran rao rar rau rca rcc rce rcg rci rcn rco rcr rcu re- rea rec ree reg rei ren reo rer reu rga rgc rge rgg rgi rgn rgo rgr ria ric rie rig rii rin rio rir rna rnc rng rni rnn rno rnr rnu roa roc roe rog roi ron roo ror rou rra rrc rrg rri rrn rrr rru rua ruc rue rug rui run ruo rur ruu ua- uaa uac uae uag uai uan uao uar uau uca ucc uce ucg uci ucn uco ucr ucu uea uec uee ueg uei uen uer uga ugc uge ugg ugi ugn ugo ugr ugu uia uic uie uig uii uin uio uir uiu un- una unc une ung uni unn uno unr unu uoa uoc uoe uog uon uoo uor ur- ura urc ure urg uri urn uro urr uru uua uuc uue uug uun uur uuu