diff --git a/src/configuration.py b/src/configuration.py
index 5d69d91..ab8477c 100644
--- a/src/configuration.py
+++ b/src/configuration.py
@@ -179,7 +179,13 @@ Ensure to generate only the JSON output with content in English.
         # for key in data:
         #     example[key] = data[key]
 
-        config["length"] = random.choice([5, 6, 7, 8, 9, 10, 12, 14, 16, 18, 20, 40, 60, 80, 100, 150])
+        num_query_word = [5, 5, 6, 6, 7, 7, 8, 9, 10, 12, 14, 16, 18, 20, 40, 60, 80, 100, 150]
+        while True:
+            config["length"] = random.choice(num_query_word)
+            if config["length"] * 3 < len(passage):
+                break
+            if config["length"] == min(num_query_word):
+                break
 
         return config