[2025-10-01T15:00:40.627422] [QUERYOME] Starting research for query 40: '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 is developed from the 1st arch:

Options:
A. Stylohyoid ligament.
B. Spenomandibular ligament.
C. Stapes.
D. Styloid process.'
[2025-10-01T15:00:40.686920] [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 is developed from the 1st arch:

Options:
A. Stylohyoid ligament.
B. Spenomandibular ligament.
C. Stapes.
D. Styloid process.'
[2025-10-01T15:00:40.688591] Saving text to bench_final/run1/medmcqa/medmcqa_1600/pi_initial_prompt.txt
[2025-10-01T15:00:40.693420] [PI] Calling o3 for initial analysis...
[2025-10-01T15:00:47.721762] [PI] Reasoning iteration 1
[2025-10-01T15:00:47.723557] [PI reasoning] **Determining arch derivatives**

I’m working on a multiple-choice question about anatomy and embryology related to structures from the first pharyngeal arch. The first arch's derivatives include Meckel cartilage derivatives such as the malleus, incus, and mandible. Meanwhile, derivatives from the second arch include parts like the stapes and styloid process. So, for this, I identify the correct answer as letter B, the sphenomandibular ligament. I need to include citations and should find evidence quickly.
[2025-10-01T15:00:47.726459] [PI] Executing function call 1: hybrid_search
[2025-10-01T15:00:47.728000] [PI] Function arguments: {'query': 'sphenomandibular ligament derived from first pharyngeal arch Meckel cartilage', 'k': 5, 'faiss_weight': 0.7, 'bm25_weight': 0.3, 'use_rrf': True}
[2025-10-01T15:00:47.729956] Saving JSON to bench_final/run1/medmcqa/medmcqa_1600/pi_iteration_1_tool_call_2_hybrid_search.json
[2025-10-01T15:00:48.499696] [PI] Function hybrid_search executed successfully
[2025-10-01T15:00:48.508331] Saving JSON to bench_final/run1/medmcqa/medmcqa_1600/pi_iteration_1_tool_result_2_hybrid_search.json
[2025-10-01T15:00:48.516655] [PI] Continuing reasoning with 1 function responses...
[2025-10-01T15:00:54.273997] [PI] Reasoning iteration 2
[2025-10-01T15:00:54.276412] [PI] No function calls found in response
[2025-10-01T15:00:54.278073] [PI] No more function calls - research complete
[2025-10-01T15:00:54.279822] Saving text to bench_final/run1/medmcqa/medmcqa_1600/pi_final_answer.txt
[2025-10-01T15:00:54.284978] [QUERYOME] Query completed successfully
