bbb bbe bbk bbo be- beb bee bek beo bev bez bkb bke bkk bko bkv bob boe bok boo bov boz bvb bve bvk bvo bvv bze bzo bzz ebb ebe ebk ebo ebv eeb eee eek eeo eev ekb eke eko ekv eo- eob eoe eok eoo evb eve evo evv eze ezo ezz k-z kbb kbe kbk kbo kbz ke- keb kee kek keo kev kez kkb kke kkk kkv kob koe kok koo koz kvb kvk kvo kvv kzo ob- obb obe obk obo obv oeb oee oeo okb oke okk oko oo- oob ook ooo oov ov- ovb ove ovo ovv oze ozo ozz v-e vbk vbo vbv vbz veb vee vek veo vez vkb vob voe vok voo vov voz vvb vvo vvv vvz zbb zbv zeb zee zek zeo zev zez zo- zob zoe zok zoo zzz

bbbb bbeb bebb bebe bebo beeb beek beke beko beo- beok bevo bevz beze bobb bobe bobo boee boeo boke boko boob booe book booz bove bovo bozo bzoe bzzz ebbo eboe eboo eeee eeke eeze ekeb ekek evoe evoo evvk ezek ezov ezzo kbbb kbbe kbbk kbbo kbbz kbeb kbee kbek kbeo kbev kbez kbkb kbkk kbko kbkv kbkz kbob kboe kbok kboo kbov kboz kbvb kbvo kbze kbzo kbzz kebb kebe keek kekb keke keko keok keve kezb keze kezz kkbb kkbe kkbo kkbz kkez kkkk kkob kkoo kkov kkoz kkvv kkzz kobb kobe kobk kobo kokb koke kokk koko kokz koob kook kooo koov kooz kove kovk kovo kozb koze kozk kozo kvbz kvob kvoe kvok kvoo kvov kvoz kvvv kvvz kzbb kzbe kzbk kzbv kzbz kzee kzke kzkz kzoo kzoz kzzb kzzk kzzo kzzv kzzz o-eo obbo obkb oboe obok okko okok oobe oooo ooze ovee ovo- ovoo ozee ozek veke veve vevo veze vkzv voke vovk vvob vvvv zbek zebe zeek zeke zeko zeve zeze zobo zoke zoo- zook zovk zozo zzzz

bbbee bbook bebek beebe beeke beeve beez bekke bekko bekok bevke bo-bo bobek bobko bobok bobov boeke bokeo bokko bokok bokov booke booko bookz booze bovee bozok bozoo bozov ebeko ebook eeeee eevee ekeko eveve evoke ezbob kebbe kebek kebob keeve ko-ko kobee kokez kokko okeke okobo ooooo oovoo ozbek v-bob veeve veeze vekke veooz veveo vokee vokov vozok zboze zeebo zeoke zovko zzzzz

bbbbbb bebook bebove beebee bekovo beovoz bezovo bobeke bobkov bobovo booboo bozkov e-book keokee koboko kookoo koovee obozek oooooo vvvvvv zeebee zeekoe zekeze zoozoo

bbbbbbb bobovek bok-bok boo-boo boobook bovezzo kee-kee kokozek ozkok

bbbbbbbb bo-bo-bo koekkoek

beebeebee keek-keek

bbbbbbbbbbbbbbb bzzzzzzzzzzzzzz