/// <inheritdoc/>
        public string ToDelimitedString()
        {
            CultureInfo culture = CultureInfo.CurrentCulture;

            return(string.Format(
                       culture,
                       StringHelper.StringFormatSequence(0, 19, Configuration.FieldSeparator),
                       Id,
                       SetIdRel.HasValue ? SetIdRel.Value.ToString(culture) : null,
                       RelationshipType?.ToDelimitedString(),
                       ThisRelationshipInstanceIdentifier?.ToDelimitedString(),
                       SourceInformationInstanceIdentifier?.ToDelimitedString(),
                       TargetInformationInstanceIdentifier?.ToDelimitedString(),
                       AssertingEntityInstanceId?.ToDelimitedString(),
                       AssertingPerson?.ToDelimitedString(),
                       AssertingOrganization?.ToDelimitedString(),
                       AssertorAddress?.ToDelimitedString(),
                       AssertorContact?.ToDelimitedString(),
                       AssertionDateRange?.ToDelimitedString(),
                       NegationIndicator,
                       CertaintyOfRelationship?.ToDelimitedString(),
                       PriorityNo.HasValue ? PriorityNo.Value.ToString(Consts.NumericFormat, culture) : null,
                       PrioritySequenceNoRelPreferenceForConsideration.HasValue ? PrioritySequenceNoRelPreferenceForConsideration.Value.ToString(Consts.NumericFormat, culture) : null,
                       SeparabilityIndicator,
                       SourceInformationInstanceObjectType,
                       TargetInformationInstanceObjectType
                       ).TrimEnd(Configuration.FieldSeparator.ToCharArray()));
        }