bbbb bblb blkb blob blok bloo bobb bobo bohl boho boko bolk boll bolo boob booh book bool bovo hhhh hobo hohl hoho hoko hol- holb holh holk holl holo hook hool hovk k-lo kbbb kbbk kbbl kbbo kbhb kbhh kbhl kbkb kbkk kbkl kbko kbkv kblb kbll kblo kblv kbob kbok kboo kbov kbvb kbvo khhk khhl khho khkk khkv khll khlo khob khok khol khvh kkbb kkbl kkbo kkhb kkhh kkhk kkkk kklb kklh kkll kklo kklv kkob kkoh kkol kkoo kkov kkvv klbb klbl klhb klhv klkk klkl klko klkv kllb kllk kllv klob kloh klok klol kloo klov klvb klvk klvl klvo klvv kobb kobk kobo kohh kohl koho kokb kokh kokk koko kolb kolk koll kolo kolv koob kook kool kooo koov kovk kovo kvbl kvkl kvlb kvlo kvlv kvob kvoh kvok kvol kvoo kvov kvvl kvvv lhhh llll lloo lo-v lob- lobb lobh lobo loho lokk loko loll lolo loob look lool lovo lvov obbo obkb obok obol ohho ohob ohoh ohok okko oklo okok okol olbo ollo olov ooho oolo oooh oooo ovo- ovol ovoo vhhh vlok voho volk voll volo vool vovk vvob vvvv