cob[6], bok[6], bot[6], koc[5], kop[5], bor[5], rob[5], kot[5], kto[5], tok[5], pot[5], top[5], kor[4], kro[4], okr[4], ork[4], rok[4], por[4], pro[4], rop[4], ort[4], rot[4], tor[4],
bo[4], co[3], ko[3], ok[3], op[3], po[3], ot[3], to[3], or[2], ro[2],