diff --git a/sketch engine.md b/sketch engine.md
index 21f9b4444..653074ea5 100644
--- a/sketch engine.md	
+++ b/sketch engine.md	
@@ -1,4 +1,6 @@
-- an [[interlay]] and [[overlay]] for [[linguistics]]
-	- [[commercial]]
-	- its open source version is [[nosketch engine]], which is limited
-	- [[wp]] []
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+- a [[tool]]
+	- an [[interlay]] and [[overlay]] for [[linguistics]]
+		- [[commercial]]
+		- its open source version is [[nosketch engine]], which is limited
+	- [[wp]] https://en.wikipedia.org/wiki/Sketch_Engine
+	- [[go]] https://www.sketchengine.eu/
\ No newline at end of file