есть запрос на Entity Framework который вызывает таблицы из БД по Id другой таблицы

var result = this.Context.LiveEnquiryServices
                      .Include("LiveService")
                      .Include("LiveEnquirySection")
                      .Include("LiveEnquiryDocuments")
                      .FirstOrDefault(x => x.LiveEnquirySectionId == liveEnquirySectionId && x.LiveServiceId == serviceId);
        return result;

public List<LiveEnquiryService> GetLiveEnquiryServices(Enquiry enquiry)
    {
        List<LiveEnquiryService> liveEnquiryService = new List<LiveEnquiryService>();

        var query = $"SELECT LiveService.*, LiveEnquirySection.*, LiveEnquiryDocuments.* FROM LiveEnquiryServices WHERE LiveEnquirySectionId = '{enquiry.Id}';";

        using (IDbConnection db = new SqlConnection(_connectionString))
        {
            liveEnquiryService = db.Query<LiveEnquiryService, LiveService, LiveEnquirySection, List<LiveEnquiryServiceDocument>, LiveEnquiryService>(query, (les, ls, lesn, lesd) =>
                    {
                        les.LiveService = ls;
                        les.LiveServiceId = ls.Id;
                        les.LiveEnquirySection = lesn;
                        les.LiveEnquirySectionId = lesn.Id;
                        les.LiveEnquiryDocuments = lesd;
                        //les.LiveEnquiryDocuments = lesd;
                        return les;
                    }, splitOn: "Id").ToList();

        }
        return liveEnquiryService.ToList();
    }