a-a a-b aaa aab aad aae aah aak aau ab- aba abb abd abe abh abk abu ad- ada adb add ade adh adk adu aea aeb aed aee aeh aek aeu aha ahb ahd ahe ahh ahk ahu aka akb akd ake akh akk aku au- aua aub aud aue auh auk b-u baa bab bad bae bah bak bau bba bbb bbd bbe bbh bbk bbu bda bdb bdd bde bdh bdk bdu be- bea beb bed bee beh bek beu bha bhb bhd bhe bhh bhk bhu bka bkb bke bkk bua bub bud bue buh buk buu daa dab dad dae dah dak dau dba dbb dbd dbe dbh dbk dbu dda ddb ddd dde ddh ddk ddu de- dea deb ded dee deh dek deu dh- dha dhb dhd dhe dhh dhk dhu dka dkb dke dkk dku dua dub dud due duh duk eaa eab ead eae eah eak eau eba ebb ebd ebe ebh ebk ebu ed- eda edb edd ede edh edk edu eea eeb eed eee eek eha ehb ehd ehe ehh ehu eka ekb ekd eke ekh eku eu- eua eub eud eue haa hab had hae hah hak hau hba hbb hbd hbe hbh hbk hbu hda hdb hdd hde hdh hdk hdu he- hea heb hed hee heh hek heu hha hhb hhd hhe hhh hhk hhu hka hkb hkd hkh hkk hku hua hub hud hue huh huk huu ka- kaa kab kad kae kah kak kau kba kbb kbd kbe kbh kbk kbu kda kdb kde kdh kdk kdu ke- kea keb ked kee keh kek kha khe khh khk khu kkb kke kkh kkk kku kub kud kue kuh kuk kuu ua- uaa uab uad uae uah uak uau uba ubb ube ubh ubk ubu uda udb udd ude udk udu uea ueb ued uee ueh uha uhb uhd uhe uhh uhu uka ukb uke ukk uku uua uue uuu