diff --git a/show/dance2023/effect/effect0.n3 b/show/dance2023/effect/effect0.n3
deleted file mode 100644
--- a/show/dance2023/effect/effect0.n3
+++ /dev/null
@@ -1,8 +0,0 @@
-@prefix : <http://light9.bigasterisk.com/> .
-@prefix effect: <http://light9.bigasterisk.com/effect/> .
-@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
-@prefix dev: <http://light9.bigasterisk.com/theater/vet/device/> .
-
-effect:effect0 a :Effect; :setting effect:effect0_set1 .
-effect:effect0_set1 :device dev:plain1;
-     :deviceAttr :brightness; :scaledValue 0.5 .