bogu[10], boku[9], kogu[9], bukw[9], woku[7],
bug[9], gub[9], buk[8], kub[8], obu[7], bok[6], kog[6], oku[6], kwo[4], wok[4],
bu[6], gu[6], ku[5], bo[4], go[4], wu[4], ko[3], ok[3],
