better additional instructions

backend/tasks/create_bench_config_file.py

@@ -247,7 +247,7 @@ class CreateBenchConfigTask:
                 "single_shot_question_generation": {
                     "run": True,
                     "timeout": self.timeout,  # Add timeout to question generation
-                    "additional_instructions": "When generating questions, make sure they do not say 'as per the text' or anything similar. Questions should be creative, interesting and thought-provoking.",
+                    "additional_instructions": "When generating questions, make sure they do not say 'as per the text' or anything similar. Questions should be creative, interesting and thought-provoking. Focus on quality over quantity. Make questions unambiguious.",
                     "chunk_sampling": {
                         "mode": "count",
                         "value": 5,