-er -ic a-a a-b a-c a-i a-t aaa aab aac aae aaf aai aam aao aap aar aat ab- aba abb abc abe abf abi abm abo abp abr abt ac- aca acb acc ace acf aci acm aco acp acr act aea aeb aec aee aef aei aem aeo aep aer aet af- afa afb afc afe aff afi afm afo afp afr aft ai- aia aib aic aie aif aii aim aio aip air ait ama amb amc ame amf ami amm amo amp amr amt aoa aob aoc aoe aof aoi aom aoo aop aor aot ap- apa apb apc ape apf api apm apo app apr apt ar- ara arb arc are arf ari arm aro arp arr art at- ata atb atc ate atf ati atm ato atp atr att b-p baa bab bac bae baf bai bam bao bap bar bat bba bbb bbc bbe bbf bbi bbm bbo bbp bbr bbt bca bcb bcc bce bcf bci bcm bco bcp bcr bct be- bea beb bec bee bef bei bem beo bep ber bet bfa bfb bfc bfe bff bfi bfm bfo bfp bfr bft bi- bia bib bic bie bif bii bim bio bip bir bit bma bmb bmc bme bmf bmi bmm bmo bmp bmr bmt boa bob boc boe bof boi bom boo bop bor bot bpa bpb bpc bpe bpf bpi bpm bpo bpp bpr bpt bra brb bre brf bri brm bro brp brr brt bta btb btc bte btf bti btm bto btp btr btt c-- caa cab cac cae caf cai cam cao cap car cat cba cbb cbc cbe cbf cbi cbm cbo cbp cbr cbt cca ccb ccc cce ccf cci ccm cco ccp ccr cct ce- cea ceb cec cee cef cei cem ceo cep cer cet cfa cfb cfc cfe cff cfi cfm cfo cfp cfr cft ci- cia cib cic cie cif cii cim cio cip cir cit cma cmb cmc cme cmf cmi cmm cmo cmp cmr cmt co- coa cob coc coe cof coi com coo cop cor cot cpa cpb cpc cpe cpf cpi cpm cpo cpp cpr cpt cra crb crc cre crf cri crm cro crp crr crt cta ctb ctc cte ctf cti ctm cto ctp ctr ctt eaa eab eac eae eaf eai eam eao eap ear eat eba ebb ebc ebe ebf ebi ebm ebo ebp ebr ebt ec- eca ecb ecc ece ecf eci ecm eco ecr ect eea eeb eec eee eef eem eeo eep eer eet ef- efa efb efc efe eff efi efm efo efp efr eft eia eib eic eie eif eii eim eio eip eir eit em- ema emb emc eme emf emi emm emo emp emr emt eo- eoa eob eoc eoe eof eoi eom eoo eop eor eot ep- epa epb epc epe epf epi epm epo epp epr ept era erb erc ere erf eri erm ero erp err ert eta etb etc ete etf eti etm eto etp etr ett faa fab fac fae faf fai fam fao fap far fat fba fbb fbc fbe fbf fbi fbm fbo fbp fbr fbt fca fcb fcc fce fcf fci fcm fco fcp fcr fct fea feb fec fee fef fei fem feo fep fer fet ffa ffc ffe fff ffi ffm ffo ffp ffr fft fia fib fic fie fif fii fim fip fir fit fma fmb fmc fme fmf fmi fmm fmo fmp fmr fmt foa fob foc foe fof foi fom foo fop for fot fpa fpb fpc fpe fpi fpm fpo fpp fpr fpt fra frb frc fre frf fri frm fro frp frr frt fta ftb ftc fte ftf fti ftm fto ftp ftr ftt i-f ia- iaa iab iac iae iaf iai iam iao iap iar iat iba ibb ibc ibe ibf ibi ibm ibo ibp ibr ibt ica icb icc ice icf ici icm ico icp icr ict ie- iea iec iee ief iei iem iep ier iet ifa ifb ifc ife iff ifi ifm ifo ifp ifr ift iia iib iic iie iif iii iim iio iip iir iit im- ima imb imc ime imf imi imm imo imp imt io- ioa iob ioc ioe iof ioi iom ioo iop ior iot ipa ipb ipc ipe ipf ipi ipm ipo ipp ipr ipt ir- ira irb irc ire irf iri irm iro irp irr irt ita itb itc ite itf iti itm ito itp itt m-f m-o m-r maa mab mac mae maf mai mam mao map mar mat mba mbb mbc mbe mbf mbi mbm mbo mbp mbr mbt mc- mca mcb mcc mce mcf mci mcm mco mcp mcr mct mea meb mec mee mef mei mem meo mep mer met mfa mfb mfc mfe mff mfi mfm mfo mfp mfr mft mi- mia mib mic mie mif mii mim mio mip mir mit mma mmb mmc mme mmf mmi mmm mmo mmp mmr mmt moa mob moc moe mof moi mom moo mop mor mot mpa mpb mpc mpe mpf mpi mpm mpo mpp mpr mpt mra mrb mrc mre mrf mri mrm mro mrp mrr mrt mta mtb mtc mte mtf mti mtm mto mtp mtr mtt o-i oaa oab oac oae oaf oai oam oao oap oar oat ob- oba obb obc obe obf obi obm obo obp obr obt oc- oca ocb occ ocf oci ocm oco ocp ocr oct oea oeb oec oee oef oei oem oeo oep oer oet of- ofa ofb ofc ofe off ofi ofm ofo ofp ofr oft oia oib oic oie oif oii oim oio oip oir oit om- oma omb omc ome omf omi omm omo omp omr omt oo- ooa oob ooc oof ooi oom ooo oop oor oot op- opa opb opc ope opf opi opm opo opp opr opt or- ora orb orc ore orf ori orm oro orp orr ort ot- ota otb otc ote otf oti otm oto otp