-ey a-a a-b a-t aaa aab aae aan aap aat aay ab- aba abb abe abn abp abt aby aea aeb aee aen aep aet aey an- ana anb ane ann anp ant any ap- apa apb ape apn app apt apy at- ata atb ate atn atp att ay- aya aye ayn ayp ayt b-p baa bab bae ban bap bat bay bba bbb bbe bbn bbp bbt bby be- bea beb bee ben bep bet bey bna bnb bne bnn bnp bnt bpa bpb bpe bpn bpp bpt bpy bta btb bte btn btp btt bty by- bya bye byn byp byt eaa eab eae ean eap eat eba ebb ebe ebn ebp ebt eby eea eeb eee een eep eet eey en- ena enb ene enn enp ent eny ep- epa epb epe epn epp ept eta etb ete etn etp ett ety eya eye eyn eyp eyt naa nab nae nan nap nat nay nba nbb nbe nbn nbp nbt ne- nea neb nee nen nep net ney nna nnb nne nnn nnp nnt npa npb npe npn npp npt nta ntb nte ntn ntp ntt nya nye nyn nyp nyt nyy p-p paa pab pae pan pap pat pay pba pbb pbe pbn pbp pbt pby pea peb pee pen pep pet pey pn- pna pnb pne pnn pnp pnt pny ppa ppb ppe ppn ppp ppt pt- pta ptb pte ptn ptp ptt pty py- pya pyb pye pyn pyt taa tab tae tan tap tat tay tba tbb tbe tbn tbp tbt te- tea teb tee ten tep tet tey tna tnb tne tnn tnp tnt tpa tpb tpe tpn tpp tpt tta ttb tte ttn ttp ttt tty tya tye tyn typ tyt yaa yab yae yan yap yat yay ybe ybp yby yea yeb yee yen yep yet yey yna yne ynn ynp yny ypa yta yte ytn ytp ytt yyb yye yyt yyy