kopn[6], kopr[6], krop[6], wkop[6], kron[5], wron[4],
kop[5], nok[4], kor[4], kro[4], okr[4], ork[4], rok[4], por[4], pro[4], rop[4], prr[4], kwo[4], wok[4], nor[3], won[3], rwo[3], wrr[3],
ko[3], ok[3], op[3], po[3], no[2], on[2], or[2], ro[2],
