-er a-a a-b a-i aaa aab aad aae aag aai aam aan aar ab- aba abb abd abe abg abi abm abn abr ad- ada adb add ade adg adi adm adn adr aea aeb aed aee aeg aei aem aen aer ag- aga agb agd age agg agi agm agn agr ai- aia aib aid aie aig aii aim ain air ama amb amd ame amg ami amm amn amr an- ana anb and ane ang ani anm ann anr ar- ara arb ard are arg ari arm arn arr baa bab bad bae bag bai bam ban bar bba bbb bbd bbe bbg bbi bbm bbn bbr bda bdb bdd bde bdg bdi bdm bdr be- bea beb bed bee beg bei bem ben ber bga bgb bgd bge bgg bgi bgm bgn bgr bi- bia bib bid bie big bii bim bin bir bma bmb bmd bme bmg bmi bmm bmn bmr bna bnb bnd bne bng bni bnn bnr bra brb brd bre brg bri brm brn brr daa dab dad dae dag dai dam dan dar dba dbb dbd dbe dbg dbi dbm dbn dbr dda ddb ddd dde ddg ddi ddm ddn ddr de- dea deb ded dee deg dei dem den der dga dgd dge dgg dgi dgm dgn dgr di- dia dib did die dig dii dim din dir dma dmb dmd dme dmg dmi dmm dmn dmr dna dnb dnd dne dng dni dnm dnn dnr dra drb drd dre drg dri drm drn drr eaa eab ead eae eag eai eam ean ear eba ebb ebd ebe ebg ebi ebm ebn ebr ed- eda edb edd ede edg edi edm edn edr eea eeb eed eee eeg eem een eer ega egb egd ege egg egi egm egn egr eia eib eid eie eig eii eim ein eir em- ema emb emd eme emg emi emm emn emr en- ena enb end ene eng eni enm enn enr era erb erd ere erg eri erm ern err g-d gaa gab gad gae gag gai gam gan gar gba gbd gbe gbg gbi gbm gbn gbr gda gdb gdd gde gdi gdm gdn gdr ge- gea geb ged gee geg gei gem gen ger gga ggb ggd ggg ggi ggm ggn ggr gia gib gid gie gig gii gim gin gir gma gmb gmd gme gmg gmi gmm gmn gmr gna gnb gnd gne gni gnm gnn gnr gra grb grd gre grg gri grm grn grr i-d ia- iaa iab iad iae iag iai iam ian iar iba ibb ibd ibe ibg ibi ibm ibn ibr ida idb idd ide idg idi idm idn idr ie- iea ied iee ieg iei iem ien ier iga igb igd ige igg igi igm ign igr iia iib iid iie iii iim iin iir im- ima imb imd ime img imi imm imn in- ina inb ind ine ing ini inm inn inr ir- ira irb ird ire irg iri irm irn irr m-r maa mab mad mae mag mai mam man mar mba mbb mbd mbe mbg mbi mbm mbr mda mdb mdd mde mdg mdi mdm mdn mdr mea meb med mee meg mei mem men mer mga mgb mgd mge mgi mgm mgn mgr mi- mia mib mid mie mig mii mim min mir mma mmb mmd mme mmg mmi mmm mmn mmr mna mnb mne mng mni mnm mnn mnr mra mrb mrd mre mrg mri mrm mrn mrr n-i naa nab nad nae nag nai nam nan nar nba nbb nbd nbe nbg nbi nbm nbn nbr nda ndb ndd nde ndg ndi ndm ndn ndr ne- nea neb ned nee neg nei nem nen ner nga ngb ngd nge ngg ngi ngm ngn nia nib nid nie nig nii nim nin nir nma nmb nmd nme nmg nmi nmm nmn nmr nna nnb nne nng nni nnm nnn nra nrb nrd nre nrg nri nrm nrn nrr ra- raa rab rad rae rag rai ram ran rar rba rbb rbd rbe rbg rbi rbm rbn rbr rda rdb rdd rde rdg rdi rdm rdn rdr re- rea reb red ree reg rei rem ren rer rga rgb rgd rge rgg rgi rgn rgr ria rib rid rie rig rii rim rin rir rma rmb rmd rme rmg rmi rmm rmn rmr rna rnb rnd rng rni rnm rnn rnr rra rrb rrd rrg rri rrm rrn rrr