diff --git a/call-hierarchy-sample/README.md b/call-hierarchy-sample/README.md
index 4b9d87ce..23c93cb8 100644
--- a/call-hierarchy-sample/README.md
+++ b/call-hierarchy-sample/README.md
@@ -1,6 +1,6 @@
 # Call Hierarchy Provider Sample
 
-This sample shows the **Call Hierarchy** in action based on a simple food pyramid model defined using simple subject~verb~object syntax.
+This sample shows the **Call Hierarchy** in action based on a simple food pyramid model defined using simple subject ~ verb ~ object syntax.
 
 ![Sample](demo.gif)
 
@@ -31,4 +31,4 @@ Right click on a noun or a verb and select _Peek Call Hierarchy_.
 
 ## Contributing to the Sample and Testing the Sample
 
-Run the _Run Extension Tests_ configuration and verify in the Debug Console that all tests are passing.
\ No newline at end of file
+Run the _Run Extension Tests_ configuration and verify in the Debug Console that all tests are passing.
diff --git a/call-hierarchy-sample/src/FoodPyramidHierarchyProvider.ts b/call-hierarchy-sample/src/FoodPyramidHierarchyProvider.ts
index 0c2afeb0..5e87d6ba 100644
--- a/call-hierarchy-sample/src/FoodPyramidHierarchyProvider.ts
+++ b/call-hierarchy-sample/src/FoodPyramidHierarchyProvider.ts
@@ -88,33 +88,6 @@ export class FoodPyramidHierarchyProvider implements CallHierarchyProvider {
 		return new CallHierarchyItem(SymbolKind.Object, word, `(${type})`, document.uri, range, range);
 	}
 
-	deriveCalledItem(item: CallHierarchyItem, called: string, document: TextDocument): CallHierarchyOutgoingCall {
-		const range = this.rangeOf(called, document);
-		let calledItem = new CallHierarchyItem(item.kind, called, called, item.uri, range, range);
-		return new CallHierarchyOutgoingCall(calledItem, this.allRangesOf(called, document));
-	}
-
-	rangeOf(word: string, document: TextDocument): Range {
-		let match = new RegExp("\\b" + word + "\\b").exec(document.getText());
-		let offset = match!.index;
-		return this.toRange(document, offset, word);
-	}
-
-	allRangesOf(word: string, document: TextDocument): Range[] {
-		let pattern = new RegExp("\b" + word + "\b");
-		let ranges: Range[] = [];
-
-		var match: RegExpExecArray | null;
-		while (match = pattern.exec(document.getText())) {
-			ranges.push(this.toRange(document, match.index, word));
-		}
-		return ranges;
-	}
-
-	private toRange(document: TextDocument, offset: number, word: string) {
-		let position = document.positionAt(offset);
-		return new Range(position, position.translate({ characterDelta: word.length }));
-	}
 }
 
 /**