-al a-a a-b aaa aab aad aae aal aan aap ab- aba abb abd abe abl abn abp ad- ada adb add ade adl adn adp aea aeb aed aee ael aen aep al- ala alb ald ale all aln alp an- ana anb and ane anl ann anp ap- apa apb apd ape apl apn app b-p baa bab bad bae bal ban bap bba bbb bbd bbe bbl bbn bbp bda bdb bdd bde bdl bdp be- bea beb bed bee bel ben bep bla blb bld ble bll bln blp bna bnb bnd bne bnl bnn bnp bpa bpb bpd bpe bpl bpn bpp daa dab dad dae dal dan dap dba dbb dbd dbe dbl dbn dbp dda ddb ddd dde ddl ddn ddp de- dea deb ded dee del den dep dl- dla dlb dld dle dll dlp dna dnb dnd dne dnl dnn dnp dpa dpb dpd dpe dpl dpn dpp eaa eab ead eae eal ean eap eba ebb ebd ebe ebl ebn ebp ed- eda edb edd ede edl edn edp eea eeb eed eee eel een eep ela elb eld ele ell eln elp en- ena enb end ene enl enn enp ep- epa epb epd epe epl epn epp l-p la- laa lab lad lae lal lan lap lba lbb lbd lbe lbl lbp lda ldb ldd lde ldl ldn ldp lea leb led lee lel len lep lla llb lld lle lll lln llp lna lnb lnd lne lnl lnn lnp lpa lpb lpd lpe lpl lpn lpp naa nab nad nae nal nan nap nba nbb nbd nbe nbl nbn nbp nda ndb ndd nde ndl ndn ndp ne- nea neb ned nee nel nen nep nla nlb nld nle nll nln nlp nna nnb nne nnl nnn nnp npa npb npd npe npl npn npp p-p paa pab pad pae pal pan pap pba pbb pbd pbe pbl pbn pbp pda pdb pdd pde pdl pdn pdp pea peb ped pee pel pen pep pla plb pld ple pll pln plp pn- pna pnb pnd pne pnl pnn pnp ppa ppb ppd ppe ppl ppn ppp