-er -ic a-a a-c a-i a-t aaa aac aad aae aag aai aan aar aat ac- aca acc acd ace acg aci acn acr act ad- ada adc add ade adg adi adn adr adt aea aec aed aee aeg aei aen aer aet ag- aga agc agd age agg agi agn agr agt ai- aia aic aid aie aig aii ain air ait an- ana anc and ane ang ani ann anr ant ar- ara arc ard are arg ari arn arr art at- ata atc atd ate atg ati atn atr att c-- caa cac cad cae cag cai can car cat cca ccc ccd cce ccg cci ccn ccr cct cda cdc cdd cde cdg cdi cdn cdr cdt ce- cea cec ced cee ceg cei cen cer cet cga cgc cgd cge cgg cgi cgn cgr cgt ci- cia cic cid cie cig cii cin cir cit cn- cna cnc cnd cne cng cni cnn cnr cnt cra crc crd cre crg cri crn crr crt cta ctc ctd cte ctg cti ctn ctr ctt daa dac dad dae dag dai dan dar dat dca dcc dcd dce dcg dci dcn dcr dct dda ddc ddd dde ddg ddi ddn ddr ddt de- dea dec ded dee deg dei den der det dga dgc dgd dge dgg dgi dgn dgr dgt di- dia dic did die dig dii din dir dit dna dnc dnd dne dng dni dnn dnr dnt dra drc drd dre drg dri drn drr drt dta dtc dtd dte dtg dti dtn dtr dtt eaa eac ead eae eag eai ean ear eat ec- eca ecc ecd ece ecg eci ecn ecr ect ed- eda edc edd ede edg edi edn edr edt eea eec eed eee eeg een eer eet ega egc egd ege egg egi egn egr egt eia eic eid eie eig eii ein eir eit en- ena enc end ene eng eni enn enr ent era erc erd ere erg eri ern err ert eta etc etd ete etg eti etn etr ett g-d gaa gac gad gae gag gai gan gar gat gca gcc gcd gce gcg gci gcn gcr gct gda gdc gdd gde gdi gdn gdr gdt ge- gea gec ged gee geg gei gen ger get gga ggc ggd ggg ggi ggn ggr ggt gia gic gid gie gig gii gin gir git gna gnc gnd gne gni gnn gnr gnt gra grc grd gre grg gri grn grr grt gta gtc gtd gte gtg gti gtn gtr gtt i-d ia- iaa iac iad iae iag iai ian iar iat ica icc icd ice icg ici icn icr ict ida idc idd ide idg idi idn idr idt ie- iea iec ied iee ieg iei ien ier iet iga igc igd ige igg igi ign igr igt iia iic iid iie iii iin iir iit in- ina inc ind ine ing ini inn inr int ir- ira irc ird ire irg iri irn irr irt ita itc itd ite itg iti itn itt n-i naa nac nad nae nag nai nan nar nat nca ncc ncd nce ncg nci ncn ncr nct nda ndc ndd nde ndg ndi ndn ndr ndt ne- nea nec ned nee neg nei nen ner net nga ngc ngd nge ngg ngi ngn ngt nia nic nid nie nig nii nin nir nit nna nnc nne nng nni nnn nnt nra nrc nrd nre nrg nri nrn nrr nrt nta ntc ntd nte ntg nti ntn ntr ntt ra- raa rac rad rae rag rai ran rar rat rca rcc rcd rce rcg rci rcn rcr rct rda rdc rdd rde rdg rdi rdn rdr rdt re- rea rec red ree reg rei ren rer ret rga rgc rgd rge rgg rgi rgn rgr rgt ria ric rid rie rig rii rin rir rit rna rnc rnd rng rni rnn rnr rnt rra rrc rrd rrg rri rrn rrr rrt rta rtc rtd rte rtg rti rtn rtr rtt taa tac tad tae tag tai tan tar tat tca tcc tcd tce tcg tci tcn tcr tct tda tdc tdd tde tdg tdi tdn tdr tdt te- tea tec ted tee teg tei ten ter tet tga tgc tge tgg tgi tgn tgr tgt tia tic tid tie tig tii tin tir tit tna tnc tnd tne tng tni tnn tnr tnt tra trc trd tre trg tri trn trr trt tta ttc ttd tte ttg tti ttn ttr ttt