a-a a-b a-z aaa aab aae aah aak aau aaz ab- aba abb abe abh abk abu abz aea aeb aee aeh aek aeu aez aha ahb ahe ahh ahk ahu ahz aka akb ake akh akk aku au- aua aub aue auh auk auz az- aza azb aze azu azz b-u baa bab bae bah bak bau baz bba bbb bbe bbh bbk bbu be- bea beb bee beh bek beu bez bha bhb bhe bhh bhk bhu bka bkb bke bkk bua bub bue buh buk buu buz bza bze bzh bzu bzz eaa eab eae eah eak eau eaz eba ebb ebe ebh ebk ebu eea eeb eee eek eha ehb ehe ehh ehu eka ekb eke ekh eku eu- eua eub eue eze ezh ezz haa hab hae hah hak hau haz hba hbb hbe hbh hbk hbu hbz he- hea heb hee heh hek heu hez hha hhb hhe hhh hhk hhu hhz hka hkb hkh hkk hku hua hub hue huh huk huu huz hze k-z ka- kaa kab kae kah kak kau kaz kba kbb kbe kbh kbk kbu kbz ke- kea keb kee keh kek kez kha khe khh khk khu khz kkb kke kkh kkk kku kub kue kuh kuk kuu ua- uaa uab uae uah uak uau uaz uba ubb ube ubh ubk ubu uea ueb uee ueh uha uhb uhe uhh uhu uka ukb uke ukk uku ukz uua uue uuu uza uzb uzh uzu zaa zab zah zak zaz zbb zea zeb zee zeh zek zez zha zhe zhu zka zub zuk zuz zzz