boj[7], job[7], bod[6], jod[6], bon[5], jon[5], bor[5], rob[5], jor[5], dno[4], don[4], odr[4], ord[4], rod[4], nor[3], nos[3], son[3], ros[3],
bo[4], oj[4], do[3], od[3], no[2], on[2], or[2], ro[2], os[2],
