fix

experiment_presets/example_free.json

@@ -7,7 +7,7 @@
     "role_agent_codes":["Lacia-en","Trek-en"],
     "intervention":"One day, an enigmatic signal from an unknown source reached Lacia and Trek...",
     "script":"",
-    "source":"Example",
+    "source":"example_world",
     "language":"en"
 
 }