b-u bbb bbe bbg bbk bbo bbu be- beb bee beg bek beo beu bez bgb bge bgg bgk bgo bgu bgz bkb bke bkg bkk bko bob boe bog bok boo bou boz bub bue bug buk buo buu buz bze bzo bzu bzz ebb ebe ebg ebk ebo ebu eeb eee eeg eek eeo egb ege egg ego egu ekb eke ekg eko eku eo- eob eoe eog eok eoo eou eu- eub eue eug eze ezo ezz gbe gbg gbk gbo gbu gbz ge- geb gee geg gek geo geu gez ggb ggg ggo ggu ggz gkb gko gob goe gog gok goo gou goz gu- gub gue gug guk guo guu guz gzo gzu k-z kbb kbe kbk kbo kbu kbz ke- keb kee keg kek keo kez kgb kgo kgu kkb kke kkk kku kob koe kog kok koo kou koz kub kue kug kuk kuu kzo ob- obb obe obg obk obo obu oeb oee oeg oeo oge ogg ogo okb oke okg okk oko oku oo- oob oog ook ooo ou- oue ouk ouo oze ozo ozu ozz ubb ube ubg ubk ubo ubu ueb uee ueg ugb uge ugg ugk ugo ugu ukb uke ukk uku ukz uob uoe uog uok uoo uue uug uuu uzb uzo uzu z-g zbb zeb zee zek zeo zez zgb zgg zo- zob zoe zog zok zoo zou zub zug zuk zuz zzz