-up a-a a-b a-t aaa aab aae aan aap aat aau ab- aba abb abe abn abp abt abu aea aeb aee aen aep aet aeu an- ana anb ane ann anp ant anu ap- apa apb ape apn app apt apu at- ata atb ate atn atp att atu au- aua aub aue aun aup aut b-p b-u baa bab bae ban bap bat bau bba bbb bbe bbn bbp bbt bbu be- bea beb bee ben bep bet beu bna bnb bne bnn bnp bnt bnu bpa bpb bpe bpn bpp bpt bpu bta btb bte btn btp btt btu bua bub bue bun bup but buu eaa eab eae ean eap eat eau eba ebb ebe ebn ebp ebt ebu eea eeb eee een eep eet en- ena enb ene enn enp ent enu ep- epa epb epe epn epp ept epu eta etb ete etn etp ett etu eu- eua eub eue eun eup eut naa nab nae nan nap nat nau nba nbb nbe nbn nbp nbt nbu ne- nea neb nee nen nep net neu nna nnb nne nnn nnp nnt nnu npa npb npe npn npp npt npu nta ntb nte ntn ntp ntt ntu nua nub nue nun nup nut nuu p-p paa pab pae pan pap pat pau pba pbb pbe pbn pbp pbt pbu pea peb pee pen pep pet peu pn- pna pnb pne pnn pnp pnt pnu ppa ppb ppe ppn ppp ppt ppu pt- pta ptb pte ptn ptp ptt ptu pua pub pue pun pup put puu taa tab tae tan tap tat tau tba tbb tbe tbn tbp tbt tbu te- tea teb tee ten tep tet teu tna tnb tne tnn tnp tnt tpa tpb tpe tpn tpp tpt tpu tta ttb tte ttn ttp ttt ttu tua tub tue tun tup tut tuu ua- uaa uab uae uan uap uat uau uba ubb ube ubn ubp ubt ubu uea ueb uee uen uep uet un- una unb une unn unp unt unu up- upa upb upe upn upp upt upu uta utb ute utn utp utt utu uua uue uun uut uuu