element-expression

    Specifies one or more generations of an element to be retrieved
    from the library. An element expression can be an element name, a
    group name, a wildcard expression, or a list of these separated by
    commas. By default, the most recent generation on the main line of
    descent is fetched.

 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.