trace preserved_refinement "Reviewed request refinement" id "b42fb6e3-db90-5349-b957-faeba373ba91" {
    baseline {
        oa {
            description "Preserve engineering record activity_a.";
            name "A - receive request";
        };
        sa {
            description "Preserve engineering record sa_function.";
            name "Technical request processing";
        };
    };
    description "Group geometry and Hide preserve this trace and both endpoints.";
    oa @activity_a;
    sa @sa_function;
}