-al -er a-a a-b aaa aab aae aag aah aal aan aar ab- aba abb abe abg abh abl abn abr aea aeb aee aeg aeh ael aen aer ag- aga agb age agg agh agl agn agr aha ahb ahe ahg ahh ahl ahn ahr al- ala alb ale alg alh all aln alr an- ana anb ane ang anh anl ann anr ar- ara arb are arg arh arl arn arr baa bab bae bag bah bal ban bar bba bbb bbe bbg bbh bbl bbn bbr be- bea beb bee beg beh bel ben ber bga bgb bge bgg bgh bgl bgn bgr bha bhb bhe bhg bhh bhl bhr bla blb ble blg blh bll bln blr bna bnb bne bng bnl bnn bnr bra brb bre brg brh brl brn brr eaa eab eae eag eah eal ean ear eba ebb ebe ebg ebh ebl ebn ebr eea eeb eee eeg eel een eer ega egb ege egg egh egl egn egr eha ehb ehe ehg ehh ehl ehn ehr ela elb ele elg elh ell eln elr en- ena enb ene eng enh enl enn enr era erb ere erg erh erl ern err gaa gab gae gag gah gal gan gar gba gbe gbg gbh gbl gbn gbr ge- gea geb gee geg geh gel gen ger gga ggb ggg ggh ggn ggr gha ghb ghe ghg ghh ghl ghn ghr gla glb gle glg glh gll gln glr gna gnb gne gnl gnn gnr gra grb gre grg grh grl grn grr haa hab hae hag hah hal han har hba hbb hbe hbg hbh hbl hbn hbr he- hea heb hee heg heh hel hen her hga hgb hge hgg hgh hgl hgn hgr hha hhb hhe hhg hhh hhl hhn hhr hla hlb hle hlg hlh hll hln hlr hna hnb hne hng hnh hnl hnn hr- hra hrb hre hrg hrh hrl hrn hrr la- laa lab lae lag lah lal lan lar lba lbb lbe lbg lbh lbl lbr lea leb lee leg leh lel len ler lga lgb lge lgg lgh lgl lgn lgr lha lhb lhh lhr lla llb lle llg lll lln llr lna lnb lne lng lnh lnl lnn lnr lra lrb lrg lrh lrn lrr naa nab nae nag nah nal nan nar nba nbb nbe nbg nbl nbn nbr ne- nea neb nee neg neh nel nen ner nga ngb nge ngg ngh ngl ngn nha nhb nhe nhg nhh nhl nhn nhr nla nlb nle nlg nlh nll nln nlr nna nnb nne nng nnh nnl nnn nra nrb nre nrg nrl nrn nrr ra- raa rab rae rag rah ral ran rar rba rbb rbe rbg rbh rbl rbn rbr re- rea reb ree reg reh rel ren rer rga rgb rge rgg rgh rgn rgr rh- rha rhb rhe rhg rhh rhl rhn rhr rla rle rlg rlh rll rln rlr rna rnb rng rnh rnn rnr rra rrb rrg rrh rrl rrn rrr