public HttpResponseMessage GetComparisonTypes()
        {
            Comparisons comparisons = new Comparisons();
            var         parsed      = JsonConvert.SerializeObject(comparisons.GetComparisonTypes());
            var         response    = Request.CreateResponse(HttpStatusCode.OK);

            response.Content = new StringContent(parsed.ToString(), Encoding.UTF8, "application/json");

            return(response);
        }