-up a-a a-b aaa aab aad aae aap aau ab- aba abb abd abe abp abu ad- ada adb add ade adp adu aea aeb aed aee aep aeu ap- apa apb apd ape app apu au- aua aub aud aue aup b-p b-u baa bab bad bae bap bau bba bbb bbd bbe bbp bbu bda bdb bdd bde bdp bdu be- bea beb bed bee bep beu bpa bpb bpd bpe bpp bpu bua bub bud bue bup buu daa dab dad dae dap dau dba dbb dbd dbe dbp dbu dda ddb ddd dde ddp ddu de- dea deb ded dee dep deu dpa dpb dpd dpe dpp dpu dua dub dud due dup eaa eab ead eae eap eau eba ebb ebd ebe ebp ebu ed- eda edb edd ede edp edu eea eeb eed eee eep ep- epa epb epd epe epp epu eu- eua eub eud eue eup p-p paa pab pad pae pap pau pba pbb pbd pbe pbp pbu pda pdb pdd pde pdp pdu pea peb ped pee pep peu ppa ppb ppd ppe ppp ppu pua pub pud pue pup puu ua- uaa uab uad uae uap uau uba ubb ube ubp ubu uda udb udd ude udp udu uea ueb ued uee uep up- upa upb upd upe upp upu uua uue uuu