bok[6], kog[6], bon[5], gon[5], kop[5], pop[5], bor[5], rob[5], gro[5], ogr[5], gzo[5], nok[4], kor[4], kro[4], okr[4], ork[4], rok[4], por[4], pro[4], rop[4], nor[3], zon[3], orz[3],
bo[4], go[4], ko[3], ok[3], op[3], po[3], no[2], on[2], or[2], ro[2], oz[2],