private Location LookupOrCreate(
            StatisticsDbContext context,
            Country country,
            Institution institution       = null,
            LocalAuthority localAuthority = null,
            LocalAuthorityDistrict localAuthorityDistrict         = null,
            LocalEnterprisePartnership localEnterprisePartnership = null,
            MayoralCombinedAuthority mayoralCombinedAuthority     = null,
            Mat multiAcademyTrust           = null,
            OpportunityArea opportunityArea = null,
            ParliamentaryConstituency parliamentaryConstituency = null,
            Region region             = null,
            RscRegion rscRegion       = null,
            Sponsor sponsor           = null,
            Ward ward                 = null,
            PlanningArea planningArea = null)
        {
            var location = Lookup(
                context,
                country,
                institution,
                localAuthority,
                localAuthorityDistrict,
                localEnterprisePartnership,
                mayoralCombinedAuthority,
                multiAcademyTrust,
                opportunityArea,
                parliamentaryConstituency,
                region,
                rscRegion,
                sponsor,
                ward,
                planningArea);

            if (location == null)
            {
                var entityEntry = context.Location.Add(new Location
                {
                    Id                         = _guidGenerator.NewGuid(),
                    Country                    = country ?? Country.Empty(),
                    Institution                = institution ?? Institution.Empty(),
                    LocalAuthority             = localAuthority ?? LocalAuthority.Empty(),
                    LocalAuthorityDistrict     = localAuthorityDistrict ?? LocalAuthorityDistrict.Empty(),
                    LocalEnterprisePartnership = localEnterprisePartnership ?? LocalEnterprisePartnership.Empty(),
                    MayoralCombinedAuthority   = mayoralCombinedAuthority ?? MayoralCombinedAuthority.Empty(),
                    MultiAcademyTrust          = multiAcademyTrust ?? Mat.Empty(),
                    OpportunityArea            = opportunityArea ?? OpportunityArea.Empty(),
                    ParliamentaryConstituency  = parliamentaryConstituency ?? ParliamentaryConstituency.Empty(),
                    Region                     = region ?? Region.Empty(),
                    RscRegion                  = rscRegion ?? RscRegion.Empty(),
                    Sponsor                    = sponsor ?? Sponsor.Empty(),
                    Ward                       = ward ?? Ward.Empty(),
                    PlanningArea               = planningArea ?? PlanningArea.Empty()
                });

                return(entityEntry.Entity);
            }

            return(location);
        }