[2025-09-29T20:27:57.514150] [QUERYOME] Starting research for query 244: 'Instructions: 
 Answer the question below. First, respond with the single best option letter (A, B, C, or D). Then provide a concise reasoning (1–3 sentences). Use both the retrieved evidence and your own medical knowledge to choose the most accurate answer. 

Question:
Which of the following vessels supply the anal canal? 

Options:
{'A': 'Superior rectal aery', 'B': 'Middle rectal aery', 'C': 'Inferior rectal aery', 'D': 'all of the following'}'
[2025-09-29T20:27:57.570808] [PI] Starting research for query: 'Instructions: 
 Answer the question below. First, respond with the single best option letter (A, B, C, or D). Then provide a concise reasoning (1–3 sentences). Use both the retrieved evidence and your own medical knowledge to choose the most accurate answer. 

Question:
Which of the following vessels supply the anal canal? 

Options:
{'A': 'Superior rectal aery', 'B': 'Middle rectal aery', 'C': 'Inferior rectal aery', 'D': 'all of the following'}'
[2025-09-29T20:27:57.575783] Saving text to bench_final/run1/medmcqa/medmcqa_243/pi_initial_prompt.txt
[2025-09-29T20:27:57.583989] [PI] Calling o3 for initial analysis...
[2025-09-29T20:28:05.071669] [PI] Reasoning iteration 1
[2025-09-29T20:28:05.073933] [PI reasoning] **Gathering information on arterial supply**

The user is asking for a multiple-choice answer about the vessels supplying the anal canal: the superior rectal artery, middle rectal artery, and inferior rectal artery—all of which do supply the area. So the correct response is D: all of the following. I need to include a brief reasoning and at least one citation. It seems I can answer from general anatomy knowledge, but I'll do a quick search to gather supporting evidence. I'll look up "anal canal arterial supply superior middle inferior rectal artery."
[2025-09-29T20:28:05.075588] [PI] Executing function call 1: hybrid_search
[2025-09-29T20:28:05.077929] [PI] Function arguments: {'query': 'anal canal arterial supply superior rectal middle rectal inferior rectal artery', 'k': 5, 'faiss_weight': 0.6, 'bm25_weight': 0.4, 'use_rrf': True}
[2025-09-29T20:28:05.079624] Saving JSON to bench_final/run1/medmcqa/medmcqa_243/pi_iteration_1_tool_call_2_hybrid_search.json
[2025-09-29T20:28:54.924605] [PI] Function hybrid_search executed successfully
[2025-09-29T20:28:54.925996] Saving JSON to bench_final/run1/medmcqa/medmcqa_243/pi_iteration_1_tool_result_2_hybrid_search.json
[2025-09-29T20:28:54.934279] [PI] Continuing reasoning with 1 function responses...
[2025-09-29T20:29:00.743247] [PI] Reasoning iteration 2
[2025-09-29T20:29:00.744885] [PI] No function calls found in response
[2025-09-29T20:29:00.747659] [PI] No more function calls - research complete
[2025-09-29T20:29:00.749371] Saving text to bench_final/run1/medmcqa/medmcqa_243/pi_final_answer.txt
[2025-09-29T20:29:00.754166] [QUERYOME] Query completed successfully
