-al a-a a-b aaa aab aad aaf aah aal aan ab- aba abb abd abf abh abl abn ad- ada adb add adf adh adl adn af- afa afb afd aff afh afl afn aha ahb ahd ahf ahh ahl ahn al- ala alb ald alf alh all aln an- ana anb and anf anh anl ann baa bab bad baf bah bal ban bba bbb bbd bbf bbh bbl bbn bda bdb bdd bdf bdh bdl bfa bfb bfd bff bfh bfl bfn bha bhb bhd bhf bhh bhl bla blb bld blf blh bll bln bna bnb bnd bnf bnl bnn daa dab dad daf dah dal dan dba dbb dbd dbf dbh dbl dbn dda ddb ddd ddf ddh ddl ddn dfa dfb dfd dff dfh dfl dfn dh- dha dhb dhd dhf dhh dhl dl- dla dlb dld dlf dlh dll dna dnb dnd dnf dnh dnl dnn faa fab fad faf fah fal fan fba fbb fbd fbf fbh fbl fbn fda fdb fdd fdf fdh fdl fdn ffa ffd fff ffh ffl ffn fha fhb fhf fhh fhl fhn fla flb fld flf fll fln fna fnb fnd fnf fnh fnl fnn haa hab had haf hah hal han hba hbb hbd hbf hbh hbl hbn hda hdb hdd hdf hdh hdl hdn hfa hfb hfd hff hfh hfl hfn hha hhb hhd hhf hhh hhl hhn hla hlb hld hlf hlh hll hln hna hnb hnd hnf hnh hnl hnn la- laa lab lad laf lah lal lan lba lbb lbd lbf lbh lbl lda ldb ldd ldf ldh ldl ldn lfa lfb lfd lff lfh lfl lfn lha lhb lhd lhf lhh lla llb lld llf lll lln lna lnb lnd lnh lnl lnn naa nab nad naf nah nal nan nba nbb nbd nbf nbl nbn nda ndb ndd ndf ndh ndl ndn nfa nfb nfd nff nfl nfn nha nhb nhd nhf nhh nhl nhn nla nlb nld nlf nlh nll nln nna nnb nnf nnh nnl nnn