-al a-a a-b a-t aaa aab aae aal aan aap aat ab- aba abb abe abl abn abp abt aea aeb aee ael aen aep aet al- ala alb ale all aln alp alt an- ana anb ane anl ann anp ant ap- apa apb ape apl apn app apt at- ata atb ate atl atn atp att b-p baa bab bae bal ban bap bat bba bbb bbe bbl bbn bbp bbt be- bea beb bee bel ben bep bet bla blb ble bll bln blp blt bna bnb bne bnl bnn bnp bnt bpa bpb bpe bpl bpn bpp bpt bta btb bte btl btn btp btt eaa eab eae eal ean eap eat eba ebb ebe ebl ebn ebp ebt eea eeb eee eel een eep eet ela elb ele ell eln elp elt en- ena enb ene enl enn enp ent ep- epa epb epe epl epn epp ept eta etb ete etl etn etp ett l-p la- laa lab lae lal lan lap lat lba lbb lbe lbl lbp lbt lea leb lee lel len lep let lla llb lle lll lln llp llt lna lnb lne lnl lnn lnp lnt lpa lpb lpe lpl lpn lpp lpt lta ltb lte ltl ltp ltt naa nab nae nal nan nap nat nba nbb nbe nbl nbn nbp nbt ne- nea neb nee nel nen nep net nla nlb nle nll nln nlp nlt nna nnb nne nnl nnn nnp nnt npa npb npe npl npn npp npt nta ntb nte ntn ntp ntt p-p paa pab pae pal pan pap pat pba pbb pbe pbl pbn pbp pbt pea peb pee pel pen pep pet pla plb ple pll pln plp plt pn- pna pnb pne pnl pnn pnp pnt ppa ppb ppe ppl ppn ppp ppt pt- pta ptb pte ptl ptn ptp ptt taa tab tae tal tan tap tat tba tbb tbe tbl tbn tbp tbt te- tea teb tee tel ten tep tet tla tle tll tln tlp tlt tna tnb tne tnl tnn tnp tnt tpa tpb tpe tpl tpn tpp tpt tta ttb tte ttl ttn ttp ttt