def:     "cluster" name "(" Attr(s?) ")"
         | "system"  name "(" Attr(s?) ")"

Attr:   AttrScalar(s?)
        | AttrKeyList(s?)
        | AttrAssociation(s?)

##</code><code>##

def:     "cluster" name "(" Attr(s?) ")"
         | "system"  name "(" Attr(s?) ")"

Attr:   AttrScalar
        | AttrKeyList
        | AttrAssociation