diff --git a/show/dance2016/effect/downback.n3 b/show/dance2016/effect/downback.n3
--- a/show/dance2016/effect/downback.n3
+++ b/show/dance2016/effect/downback.n3
@@ -3,18 +3,20 @@
 @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
 @prefix xml: <http://www.w3.org/XML/1998/namespace> .
 @prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
+@prefix dev: <http://light9.bigasterisk.com/device/> .
+@prefix effect: <http://light9.bigasterisk.com/effect/> .
 
 
-<http://light9.bigasterisk.com/effect/downback> a ns1:Effect;
+effect:downback a ns1:Effect;
      rdfs:label "downback"; ns1:publishAttr ns1:strength;
-     ns1:setting <http://light9.bigasterisk.com/effect/downback_set15>, <http://light9.bigasterisk.com/effect/downback_set16>, <http://light9.bigasterisk.com/effect/downback_set17>, <http://light9.bigasterisk.com/effect/downback_set18>, <http://light9.bigasterisk.com/effect/downback_set19> .
-<http://light9.bigasterisk.com/effect/downback_set15> ns1:device <http://light9.bigasterisk.com/device/backlight1>;
+     ns1:setting effect:downback_set15, effect:downback_set16, effect:downback_set17, effect:downback_set18, effect:downback_set19 .
+effect:downback_set15 ns1:device dev:backlight1;
      ns1:deviceAttr ns1:color; ns1:scaledValue "#aeaeae" .
-<http://light9.bigasterisk.com/effect/downback_set16> ns1:device <http://light9.bigasterisk.com/device/backlight2>;
-     ns1:deviceAttr ns1:color; ns1:scaledValue "#ffffff" .
-<http://light9.bigasterisk.com/effect/downback_set17> ns1:device <http://light9.bigasterisk.com/device/backlight3>;
-     ns1:deviceAttr ns1:color; ns1:scaledValue "#ffffff" .
-<http://light9.bigasterisk.com/effect/downback_set18> ns1:device <http://light9.bigasterisk.com/device/backlight4>;
-     ns1:deviceAttr ns1:color; ns1:scaledValue "#ffffff" .
-<http://light9.bigasterisk.com/effect/downback_set19> ns1:device <http://light9.bigasterisk.com/device/backlight5>;
+effect:downback_set16 ns1:device dev:backlight2;
+     ns1:deviceAttr ns1:color; ns1:scaledValue "#f2d5b0" .
+effect:downback_set17 ns1:device dev:backlight3;
+     ns1:deviceAttr ns1:color; ns1:scaledValue "#f2d5b0" .
+effect:downback_set18 ns1:device dev:backlight4;
+     ns1:deviceAttr ns1:color; ns1:scaledValue "#f2d5b0" .
+effect:downback_set19 ns1:device dev:backlight5;
      ns1:deviceAttr ns1:color; ns1:scaledValue "#a7a7a7" .