-er -ic a-a a-b a-c a-i a-t aaa aab aac aae aag aai aan aap aar aat ab- aba abb abc abe abg abi abn abp abr abt ac- aca acb acc ace acg aci acn acp acr act aea aeb aec aee aeg aei aen aep aer aet ag- aga agb agc age agg agi agn agp agr agt ai- aia aib aic aie aig aii ain aip air ait an- ana anb anc ane ang ani ann anp anr ant ap- apa apb apc ape apg api apn app apr apt ar- ara arb arc are arg ari arn arp arr art at- ata atb atc ate atg ati atn atp atr att b-p baa bab bac bae bag bai ban bap bar bat bba bbb bbc bbe bbg bbi bbn bbp bbr bbt bca bcb bcc bce bcg bci bcn bcp bcr bct be- bea beb bec bee beg bei ben bep ber bet bga bgb bgc bge bgg bgi bgn bgp bgr bgt bi- bia bib bic bie big bii bin bip bir bit bna bnb bnc bne bng bni bnn bnp bnr bnt bpa bpb bpc bpe bpg bpi bpn bpp bpr bpt bra brb bre brg bri brn brp brr brt bta btb btc bte btg bti btn btp btr btt c-- caa cab cac cae cag cai can cap car cat cba cbb cbc cbe cbg cbi cbn cbp cbr cbt cca ccb ccc cce ccg cci ccn ccp ccr cct ce- cea ceb cec cee ceg cei cen cep cer cet cga cgb cgc cge cgg cgi cgn cgp cgr cgt ci- cia cib cic cie cig cii cin cip cir cit cn- cna cnb cnc cne cng cni cnn cnp cnr cnt cpa cpb cpc cpe cpg cpi cpn cpp cpr cpt cra crb crc cre crg cri crn crp crr crt cta ctb ctc cte ctg cti ctn ctp ctr ctt eaa eab eac eae eag eai ean eap ear eat eba ebb ebc ebe ebg ebi ebn ebp ebr ebt ec- eca ecb ecc ece ecg eci ecn ecr ect eea eeb eec eee eeg een eep eer eet ega egb egc ege egg egi egn egp egr egt eia eib eic eie eig eii ein eip eir eit en- ena enb enc ene eng eni enn enp enr ent ep- epa epb epc epe epg epi epn epp epr ept era erb erc ere erg eri ern erp err ert eta etb etc ete etg eti etn etp etr ett g-p gaa gab gac gae gag gai gan gap gar gat gba gbc gbe gbg gbi gbn gbp gbr gbt gca gcb gcc gce gcg gci gcn gcp gcr gct ge- gea geb gec gee geg gei gen gep ger get gga ggb ggc ggg ggi ggn ggp ggr ggt gia gib gic gie gig gii gin gip gir git gna gnb gnc gne gni gnn gnp gnr gnt gpa gpb gpc gpe gpg gpi gpn gpp gpr gpt gra grb grc gre grg gri grn grp grr grt gta gtb gtc gte gtg gti gtn gtp gtr gtt ia- iaa iab iac iae iag iai ian iap iar iat iba ibb ibc ibe ibg ibi ibn ibp ibr ibt ica icb icc ice icg ici icn icp icr ict ie- iea iec iee ieg iei ien iep ier iet iga igb igc ige igg igi ign igp igr igt iia iib iic iie iii iin iip iir iit in- ina inb inc ine ing ini inn inp inr int ipa ipb ipc ipe ipg ipi ipn ipp ipr ipt ir- ira irb irc ire irg iri irn irp irr irt ita itb itc ite itg iti itn itp itt n-i naa nab nac nae nag nai nan nap nar nat nba nbb nbc nbe nbg nbi nbn nbp nbr nbt nca ncb ncc nce ncg nci ncn ncp ncr nct ne- nea neb nec nee neg nei nen nep ner net nga ngb ngc nge ngg ngi ngn ngp ngt nia nib nic nie nig nii nin nip nir nit nna nnb nnc nne nng nni nnn nnp nnt npa npb npc npe npg npi npn npp npr npt nra nrb nrc nre nrg nri nrn nrp nrr nrt nta ntb ntc nte ntg nti ntn ntp ntr ntt p-p paa pab pac pae pag pai pan pap par pat pba pbb pbc pbe pbg pbi pbn pbp pbr pbt pca pcb pcc pce pcg pci pcn pcp pcr pct pea peb pec pee peg pei pen pep per pet pga pgb pgc pge pgg pgi pgn pgp pgr pgt pia pib pic pie pig pii pin pip pir pit pn- pna pnb pnc pne png pni pnn pnp pnr pnt ppa ppb ppc ppe ppg ppi ppn ppp ppr ppt pra prb prc pre prg pri prn prp prr prt pt- pta ptb ptc pte ptg pti ptn ptp ptr ptt ra- raa rab rac rae rag rai ran rap rar rat rba rbb rbc rbe rbg rbi rbn rbp rbr rbt rca rcb rcc rce rcg rci rcn rcp rcr rct re- rea reb rec ree reg rei ren rep rer ret rga rgb rgc rge rgg rgi rgn rgp rgr rgt ria rib ric rie rig rii rin rip rir rit rna rnb rnc rng rni rnn rnp rnr rnt rpa rpb rpc rpe rpg rpi rpn rpp rpr rpt rra rrb rrc rrg rri rrn rrp rrr rrt rta rtb rtc rte rtg rti rtn rtp rtr rtt taa tab tac tae tag tai tan tap tar tat tba tbb tbc tbe tbg tbi tbn tbp tbr tbt tca tcb tcc tce tcg tci tcn tcp tcr tct te- tea teb tec tee teg tei ten tep ter tet tga tgb tgc tge tgg tgi tgn tgp tgr tgt tia tib tic tie tig tii tin tip tir tit tna tnb tnc tne tng tni tnn tnp tnr tnt tpa tpb tpc tpe