diff --git a/BotSharp.Core/Engines/BotEngineBase.cs b/BotSharp.Core/Engines/BotEngineBase.cs
index 6b7072d8..c80a36ea 100644
--- a/BotSharp.Core/Engines/BotEngineBase.cs
+++ b/BotSharp.Core/Engines/BotEngineBase.cs
@@ -50,13 +50,13 @@ namespace BotSharp.Core.Engines
                 Status = new AIResponseStatus(),
                 Result = new AIResponseResult
                 {
-                    Score = doc.Sentences[0].Intent.Confidence,
+                    Score = doc.Sentences[0].Intent == null ? 0 : doc.Sentences[0].Intent.Confidence,
                     ResolvedQuery = doc.Sentences[0].Text,
                     Fulfillment = new AIResponseFulfillment { },
                     Parameters = parameters,
                     Metadata = new AIResponseMetadata
                     {
-                        IntentName = doc.Sentences[0].Intent.Label
+                        IntentName = doc.Sentences[0].Intent?.Label
                     }
                 }
             };
diff --git a/BotSharp.Core/Engines/NERs/CRFsuiteEntityRecognizer.cs b/BotSharp.Core/Engines/NERs/CRFsuiteEntityRecognizer.cs
index 939ce7be..b9e4ca59 100644
--- a/BotSharp.Core/Engines/NERs/CRFsuiteEntityRecognizer.cs
+++ b/BotSharp.Core/Engines/NERs/CRFsuiteEntityRecognizer.cs
@@ -29,6 +29,7 @@ namespace BotSharp.Core.Engines.NERs
             {
                 return new List<OntologyEnum>
                 {
+                    OntologyEnum.Location,
                     OntologyEnum.DateTime
                 };
             }
diff --git a/BotSharp.Core/Engines/NERs/README.md b/BotSharp.Core/Engines/NERs/README.md
new file mode 100644
index 00000000..126a4d9b
--- /dev/null
+++ b/BotSharp.Core/Engines/NERs/README.md
@@ -0,0 +1,15 @@
+# Extend Botsharp's entity recognition capabilities
+
+## Expand with Facebook Duckling
+Duckling is a Haskell library that parses text into structured data. A Haskell environment is required.
+```
+sudo apt install haskell-stack
+
+```
+Clone ducking from github
+```
+git clone https://github.com/facebook/duckling
+cd duckling
+stack setup
+stack build
+```
\ No newline at end of file
diff --git a/BotSharp.Core/Engines/NERs/WitAiEntityRecognizer.cs b/BotSharp.Core/Engines/NERs/WitAiEntityRecognizer.cs
index a13029b4..8be3369a 100644
--- a/BotSharp.Core/Engines/NERs/WitAiEntityRecognizer.cs
+++ b/BotSharp.Core/Engines/NERs/WitAiEntityRecognizer.cs
@@ -34,11 +34,10 @@ namespace BotSharp.Core.Engines.NERs
 
         public async Task<bool> Predict(Agent agent, NlpDoc doc, PipeModel meta)
         {
-            var config = (IConfiguration)AppDomain.CurrentDomain.GetData("Configuration");
-            var client = new RestClient($"{config.GetSection("WitAi:url").Value}");
-            var request = new RestRequest(config.GetSection("WitAi:resource").Value, Method.GET);
-            request.AddHeader("Authorization", "Bearer " + config.GetSection("WitAi:serverAccessToken").Value);
-            request.AddQueryParameter("v", config.GetSection("WitAi:version").Value);
+            var client = new RestClient($"{Configuration.GetSection("WitAiEntityRecognizer:url").Value}");
+            var request = new RestRequest(Configuration.GetSection("WitAiEntityRecognizer:resource").Value, Method.GET);
+            request.AddHeader("Authorization", "Bearer " + Configuration.GetSection("WitAiEntityRecognizer:serverAccessToken").Value);
+            request.AddQueryParameter("v", Configuration.GetSection("WitAiEntityRecognizer:version").Value);
             request.AddQueryParameter("q", doc.Sentences[0].Text);
             request.AddQueryParameter("verbose", "true");
             request.AddQueryParameter("autosuggest", "true");
diff --git a/BotSharp.WebHost/Settings/bot.json b/BotSharp.WebHost/Settings/bot.json
index e00880bf..b498eadb 100644
--- a/BotSharp.WebHost/Settings/bot.json
+++ b/BotSharp.WebHost/Settings/bot.json
@@ -1,26 +1,29 @@
 {
-  "RasaNlu": {
+  "RasaAi": {
     "url": "http://localhost:5000"
   },
-
-  "WitAi": {
-    "url": "https://api.wit.ai",
-    "resource": "message",
-    "serverAccessToken": "YLLK6SFAPXNYGMKAWLOREQ5MJQSX345L",
-    "version": "20180811"
-  },
-
   "BotSharpAi": {
     "Lang": "en",
+
     "Provider": "SpaCyProvider",
     "SpaCyProvider": {
-      "Url": "http://localhost:5005"
+      "url": "http://localhost:5005"
+    },
+
+    "Pipe": "SpaCyTokenizer, CRFsuiteEntityRecognizer, FasttextClassifier",
+    "SpaCyTokenizer": {
+      "url": "http://localhost:5005"
     },
-    "Pipe": "SpaCyTokenizer, CRFsuiteEntityRecognizer, WitAiEntityRecognizer, FasttextClassifier",
     "CRFsuiteEntityRecognizer": {
       "fields": "y w pos chk",
       "uniFeatures": "w wl pos chk shape shaped type p1 p2 p3 p4 s1 s2 s3 s4 2d 4d d&a d&- d&/ d&, d&. up iu au al ad ao cu cl ca cd cs",
       "biFeatures": "w pos chk shaped type"
+    },
+    "WitAiEntityRecognizer": {
+      "url": "https://api.wit.ai",
+      "resource": "message",
+      "serverAccessToken": "SERVER_ACCESS_TOKEN",
+      "version": "20180811"
     }
   }
 }