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diff --git a/examples/effects-concept.milch b/examples/effects-concept.milch
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+; FUNCTIONS
+
+(let! prompt-input (\[]
+    (let! p "> ")
+    (do get-user-input "prompted" p)))
+
+; SIGNAL HANDLERS
+
+(on user-input (\[msg s]
+    (match msg
+        "prompted" (batch [
+            (do print-line (fmt "You entered: %%" [s]))
+            (prompt-input)])
+        (do fatal-error (fmt "error: unknown signal %%" [msg])))))
+
+; ENTRYPOINT
+
+(prompt-input)