-er a-a a-b a-i a-t aaa aab aad aae aai aam aan aar aat ab- aba abb abd abe abi abm abn abr abt ad- ada adb add ade adi adm adn adr adt aea aeb aed aee aei aem aen aer aet ai- aia aib aid aie aii aim ain air ait ama amb amd ame ami amm amn amr amt an- ana anb and ane ani anm ann anr ant ar- ara arb ard are ari arm arn arr art at- ata atb atd ate ati atm atn atr att baa bab bad bae bai bam ban bar bat bba bbb bbd bbe bbi bbm bbn bbr bbt bda bdb bdd bde bdi bdm bdr bdt be- bea beb bed bee bei bem ben ber bet bi- bia bib bid bie bii bim bin bir bit bma bmb bmd bme bmi bmm bmn bmr bmt bna bnb bnd bne bni bnn bnr bnt bra brb brd bre bri brm brn brr brt bta btb btd bte bti btm btn btr btt daa dab dad dae dai dam dan dar dat dba dbb dbd dbe dbi dbm dbn dbr dbt dda ddb ddd dde ddi ddm ddn ddr ddt de- dea deb ded dee dei dem den der det di- dia dib did die dii dim din dir dit dma dmb dmd dme dmi dmm dmn dmr dmt dna dnb dnd dne dni dnm dnn dnr dnt dra drb drd dre dri drm drn drr drt dta dtb dtd dte dti dtm dtn dtr dtt eaa eab ead eae eai eam ean ear eat eba ebb ebd ebe ebi ebm ebn ebr ebt ed- eda edb edd ede edi edm edn edr edt eea eeb eed eee eem een eer eet eia eib eid eie eii eim ein eir eit em- ema emb emd eme emi emm emn emr emt en- ena enb end ene eni enm enn enr ent era erb erd ere eri erm ern err ert eta etb etd ete eti etm etn etr ett i-d ia- iaa iab iad iae iai iam ian iar iat iba ibb ibd ibe ibi ibm ibn ibr ibt ida idb idd ide idi idm idn idr idt ie- iea ied iee iei iem ien ier iet iia iib iid iie iii iim iin iir iit im- ima imb imd ime imi imm imn imt in- ina inb ind ine ini inm inn inr int ir- ira irb ird ire iri irm irn irr irt ita itb itd ite iti itm itn itt m-r maa mab mad mae mai mam man mar mat mba mbb mbd mbe mbi mbm mbr mbt mda mdb mdd mde mdi mdm mdn mdr mdt mea meb med mee mei mem men mer met mi- mia mib mid mie mii mim min mir mit mma mmb mmd mme mmi mmm mmn mmr mmt mna mnb mne mni mnm mnn mnr mnt mra mrb mrd mre mri mrm mrn mrr mrt mta mtb mtd mte mti mtm mtn mtr mtt n-i naa nab nad nae nai nam nan nar nat nba nbb nbd nbe nbi nbm nbn nbr nbt nda ndb ndd nde ndi ndm ndn ndr ndt ne- nea neb ned nee nei nem nen ner net nia nib nid nie nii nim nin nir nit nma nmb nmd nme nmi nmm nmn nmr nmt nna nnb nne nni nnm nnn nnt nra nrb nrd nre nri nrm nrn nrr nrt nta ntb ntd nte nti ntm ntn ntr ntt ra- raa rab rad rae rai ram ran rar rat rba rbb rbd rbe rbi rbm rbn rbr rbt rda rdb rdd rde rdi rdm rdn rdr rdt re- rea reb red ree rei rem ren rer ret ria rib rid rie rii rim rin rir rit rma rmb rmd rme rmi rmm rmn rmr rmt rna rnb rnd rni rnm rnn rnr rnt rra rrb rrd rri rrm rrn rrr rrt rta rtb rtd rte rti rtm rtn rtr rtt taa tab tad tae tai tam tan tar tat tba tbb tbd tbe tbi tbm tbn tbr tbt tda tdb tdd tde tdi tdm tdn tdr tdt te- tea teb ted tee tei tem ten ter tet tia tib tid tie tii tim tin tir tit tma tmb tmd tme tmi tmm tmn tmr tmt tna tnb tnd tne tni tnm tnn tnr tnt tra trb trd tre tri trm trn trr trt tta ttb ttd tte tti ttm ttn ttr ttt