-al a-a a-b aaa aab aad aaf aah aal aan aas ab- aba abb abd abf abh abl abn abs ad- ada adb add adf adh adl adn ads af- afa afb afd aff afh afl afn afs aha ahb ahd ahf ahh ahl ahn ahs al- ala alb ald alf alh all aln als an- ana anb and anf anh anl ann ans as- asa asb asd asf ash asl asn ass baa bab bad baf bah bal ban bas bba bbb bbd bbf bbh bbl bbn bbs bda bdb bdd bdf bdh bdl bds bfa bfb bfd bff bfh bfl bfn bfs bha bhb bhd bhf bhh bhl bhs bla blb bld blf blh bll bln bls bna bnb bnd bnf bnl bnn bns bsa bsb bsd bsf bsh bsl bsn bss daa dab dad daf dah dal dan das dba dbb dbd dbf dbh dbl dbn dbs dda ddb ddd ddf ddh ddl ddn dds dfa dfb dfd dff dfh dfl dfn dfs dh- dha dhb dhd dhf dhh dhl dhs dl- dla dlb dld dlf dlh dll dls dna dnb dnd dnf dnh dnl dnn dns dsa dsb dsd dsf dsh dsl dsn dss faa fab fad faf fah fal fan fas fba fbb fbd fbf fbh fbl fbn fbs fda fdb fdd fdf fdh fdl fdn fds ffa ffd fff ffh ffl ffn ffs fha fhb fhf fhh fhl fhn fhs fla flb fld flf fll fln fls fna fnb fnd fnf fnh fnl fnn fns fsa fsb fsd fsf fsh fsl fsn fss haa hab had haf hah hal han has hba hbb hbd hbf hbh hbl hbn hbs hda hdb hdd hdf hdh hdl hdn hds hfa hfb hfd hff hfh hfl hfn hfs hha hhb hhd hhf hhh hhl hhn hhs hla hlb hld hlf hlh hll hln hls hna hnb hnd hnf hnh hnl hnn hns hsa hsb hsd hsf hsh hsl hsn hss la- laa lab lad laf lah lal lan las lba lbb lbd lbf lbh lbl lbs lda ldb ldd ldf ldh ldl ldn lds lfa lfb lfd lff lfh lfl lfn lfs lha lhb lhd lhf lhh lhs lla llb lld llf lll lln lls lna lnb lnd lnh lnl lnn lns lsa lsb lsd lsf lsh lsl lsn lss naa nab nad naf nah nal nan nas nba nbb nbd nbf nbl nbn nbs nda ndb ndd ndf ndh ndl ndn nds nfa nfb nfd nff nfl nfn nfs nha nhb nhd nhf nhh nhl nhn nhs nla nlb nld nlf nlh nll nln nls nna nnb nnf nnh nnl nnn nns nsa nsb nsd nsf nsh nsl nsn nss saa sab sad saf sah sal san sas sba sbb sbd sbf sbh sbl sbn sbs sda sdb sdd sdf sdh sdl sdn sds sfa sfb sfd sff sfh sfl sfn sfs sh- sha shb shd shf shh shl shn shs sla slb sld slf slh sll sln sls sna snb snd snf snl snn sns ss- ssa ssb ssd ssf ssh ssl ssn sss