PARENT=keyword(,...)
    Specifies which characteristics of the parent process are used
    when selecting event records generated by a subprocess. Choose
    from the following keywords:
    IDENTIFICATION=value   Specifies the process identifier (PID) of
                           the parent process.
    NAME=process-name      Specifies the name of the parent process.
                           You can represent all or part of the name
                           with a wildcard.
    OWNER=value            Specifies the owner (identifier value) of
                           the parent process.
    USERNAME=username      Specifies the user name of the parent
                           process. You can represent all or part of
                           the name with a wildcard.