-al -er a-a a-b aaa aab aae aaf aah aal aan aar ab- aba abb abe abf abh abl abn abr aea aeb aee aef aeh ael aen aer af- afa afb afe aff afh afl afn afr aha ahb ahe ahf ahh ahl ahn ahr al- ala alb ale alf alh all aln alr an- ana anb ane anf anh anl ann anr ar- ara arb are arf arh arl arn arr baa bab bae baf bah bal ban bar bba bbb bbe bbf bbh bbl bbn bbr be- bea beb bee bef beh bel ben ber bfa bfb bfe bff bfh bfl bfn bfr bha bhb bhe bhf bhh bhl bhr bla blb ble blf blh bll bln blr bna bnb bne bnf bnl bnn bnr bra brb bre brf brh brl brn brr eaa eab eae eaf eah eal ean ear eba ebb ebe ebf ebh ebl ebn ebr eea eeb eee eef eel een eer ef- efa efb efe eff efh efl efr eha ehb ehe ehf ehh ehl ehn ehr ela elb ele elf elh ell eln elr en- ena enb ene enf enh enl enn enr era erb ere erf erh erl ern err faa fab fae faf fah fal fan far fba fbb fbe fbf fbh fbl fbn fbr fea feb fee fef feh fel fen fer ffa ffe fff ffh ffl ffn ffr fha fhb fhe fhf fhh fhl fhn fhr fla flb fle flf fll fln flr fna fnb fne fnf fnh fnl fnn fnr fra frb fre frf frh frl frn frr haa hab hae haf hah hal han har hba hbb hbe hbf hbh hbl hbn hbr he- hea heb hee hef heh hel hen her hfa hfb hfe hff hfh hfl hfn hfr hha hhb hhe hhf hhh hhl hhn hhr hla hlb hle hlf hlh hll hln hlr hna hnb hne hnf hnh hnl hnn hr- hra hrb hre hrf hrh hrl hrn hrr la- laa lab lae laf lah lal lan lar lba lbb lbe lbf lbh lbl lbr lea leb lee lef leh lel len ler lfa lfb lfe lff lfh lfl lfn lfr lha lhb lhf lhh lhr lla llb lle llf lll lln llr lna lnb lne lnh lnl lnn lnr lra lrb lrf lrh lrn lrr naa nab nae naf nah nal nan nar nba nbb nbe nbf nbl nbn nbr ne- nea neb nee nef neh nel nen ner nfa nfb nfe nff nfl nfn nfr nha nhb nhe nhf nhh nhl nhn nhr nla nlb nle nlf nlh nll nln nlr nna nnb nne nnf nnh nnl nnn nra nrb nre nrf nrl nrn nrr ra- raa rab rae raf rah ral ran rar rba rbb rbe rbf rbh rbl rbn rbr re- rea reb ree ref reh rel ren rer rfa rfb rfe rff rfh rfl rfn rfr rh- rha rhb rhe rhf rhh rhl rhn rhr rla rle rlf rlh rll rln rlr rna rnb rnh rnn rnr rra rrb rrf rrh rrl rrn rrr