[2025-10-01T16:12:08.523420] [QUERYOME] Starting research for query 172: '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 vessel is not ligated in case of epistaxis control?

Options:
A. Maxillary aery
B. Anterior ethmoidal aery
C. Internal carotid aery
D. External carotid aery'
[2025-10-01T16:12:08.569202] [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 vessel is not ligated in case of epistaxis control?

Options:
A. Maxillary aery
B. Anterior ethmoidal aery
C. Internal carotid aery
D. External carotid aery'
[2025-10-01T16:12:08.571543] Saving text to bench_final/run1/medmcqa/medmcqa_1732/pi_initial_prompt.txt
[2025-10-01T16:12:08.576948] [PI] Calling o3 for initial analysis...
[2025-10-01T16:12:18.797755] [PI] Reasoning iteration 1
[2025-10-01T16:12:18.799199] [PI reasoning] **Analyzing epistaxis vessel options**

The user wants to know which vessel isn't ligated during epistaxis control. Among the options, the internal carotid artery is not ligated, which I remember as a basic ENT principle. The other vessels like the external carotid artery can be ligated. I think it’s clear that I don’t need to perform a literature search for this, but I should still consider an in-text citation for clarity. I'll compile my answer simply while ensuring it's well-supported.
[2025-10-01T16:12:18.807601] [PI] Executing function call 1: hybrid_search
[2025-10-01T16:12:18.809126] [PI] Function arguments: {'query': 'surgical ligation epistaxis maxillary artery anterior ethmoidal artery external carotid artery internal carotid artery not performed', 'k': 5, 'faiss_weight': 0.6, 'bm25_weight': 0.4, 'use_rrf': True}
[2025-10-01T16:12:18.810865] Saving JSON to bench_final/run1/medmcqa/medmcqa_1732/pi_iteration_1_tool_call_2_hybrid_search.json
[2025-10-01T16:12:19.440716] [PI] Function hybrid_search executed successfully
[2025-10-01T16:12:19.442484] Saving JSON to bench_final/run1/medmcqa/medmcqa_1732/pi_iteration_1_tool_result_2_hybrid_search.json
[2025-10-01T16:12:19.447097] [PI] Continuing reasoning with 1 function responses...
[2025-10-01T16:12:25.057544] [PI] Reasoning iteration 2
[2025-10-01T16:12:25.059137] [PI] No function calls found in response
[2025-10-01T16:12:25.061505] [PI] No more function calls - research complete
[2025-10-01T16:12:25.063134] Saving text to bench_final/run1/medmcqa/medmcqa_1732/pi_final_answer.txt
[2025-10-01T16:12:25.077706] [QUERYOME] Query completed successfully
