element-expression

    Specifies one or more generations of elements to be removed from
    one or more classes. An element expression can be an element
    name, a group name, a wildcard expression, or a list of these
    separated by commas. When you use wildcard characters in the
    element expression, /IF_PRESENT is the default. (CMS does not
    return an error message if the class does not contain a generation
    of the element.)

 class-expression

    Specifies the class from which the element generation is to
    be removed. The class must not have read-only access. A class
    expression can be a class name, a wildcard expression, or a list
    of these separated by commas.

 remark

    Specifies a character string to be logged in the history file
    with this command, usually used to explain why the command was
    entered. The remark is enclosed in quotation marks. If no remark
    was entered, a null remark ("") is logged.