Update duckdb-nsql/eval/prompt_formatters.py

duckdb-nsql/eval/prompt_formatters.py

@@ -66,6 +66,7 @@ class RajkumarFormatter:
     def format_model_output(cls, output_sql: str, prompt: str) -> str:
         """Format model output."""
         clean_sql = (output_sql
+            .replace('sql\n', '')
             .replace('```sql\n', '')
             .replace('```duckdb\n', '')
             .replace('```\n', '')