public string HTMLGetRankedNamedEntities(string html, string url, AlchemyAPI_EntityParams parameters)
        {
            CheckHTML(html, url);
            parameters.setHtml(html);
            parameters.setUrl(url);

            return POST("HTMLGetRankedNamedEntities", "html", parameters);
        }
        public string URLGetRankedNamedEntities(string url, AlchemyAPI_EntityParams parameters)
        {
            CheckURL(url);
            parameters.setUrl(url);

            return GET("URLGetRankedNamedEntities", "url", parameters);
        }