[2025-10-01T16:07:30.377434] [QUERYOME] Starting research for query 167: '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:
Bones are held by a long cord or sheet of dense fibrous connective tissue called:

Options:
A. Suture.
B. Gomphosis.
C. Synchondrosis.
D. Syndesmosis.'
[2025-10-01T16:07:30.417319] [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:
Bones are held by a long cord or sheet of dense fibrous connective tissue called:

Options:
A. Suture.
B. Gomphosis.
C. Synchondrosis.
D. Syndesmosis.'
[2025-10-01T16:07:30.418957] Saving text to bench_final/run1/medmcqa/medmcqa_1727/pi_initial_prompt.txt
[2025-10-01T16:07:30.425056] [PI] Calling o3 for initial analysis...
[2025-10-01T16:07:36.798822] [PI] Reasoning iteration 1
[2025-10-01T16:07:36.807104] [PI reasoning] **Clarifying joint definitions**

I need to answer a question about bones held together by dense connective tissue, which is called syndesmosis. There's also suture and gomphosis, and synchondrosis. The answer is D, focusing on syndesmosis and its connection through the interosseous membrane or ligaments like tibiofibular ones. Since it's a definitional query, I’ll look up in-text citations from anatomy sources for the definition of syndesmosis. I'll do a quick search for that.
[2025-10-01T16:07:36.809370] [PI] Executing function call 1: hybrid_search
[2025-10-01T16:07:36.811868] [PI] Function arguments: {'query': 'syndesmosis joint defined as bones held together by a sheet or cord of dense fibrous connective tissue', 'k': 5, 'faiss_weight': 0.5, 'bm25_weight': 0.5, 'use_rrf': True}
[2025-10-01T16:07:36.813842] Saving JSON to bench_final/run1/medmcqa/medmcqa_1727/pi_iteration_1_tool_call_2_hybrid_search.json
[2025-10-01T16:07:39.097183] [PI] Function hybrid_search executed successfully
[2025-10-01T16:07:39.098788] Saving JSON to bench_final/run1/medmcqa/medmcqa_1727/pi_iteration_1_tool_result_2_hybrid_search.json
[2025-10-01T16:07:39.131919] [PI] Continuing reasoning with 1 function responses...
[2025-10-01T16:07:46.531873] [PI] Reasoning iteration 2
[2025-10-01T16:07:46.533343] [PI reasoning] **Clarifying syndesmosis**

I'm defining syndesmosis as a fibrous joint that links bones with strong membranes or ligaments. Alright, my answer will be option D. The reasoning is straightforward: syndesmosis joints involve bones joined by a ligament or interosseous membrane, like the tibia and fibula. In contrast, sutures and gomphoses also represent fibrous joints, while synchondrosis is cartilaginous. I've got my citation ready, so let's put it all together!
[2025-10-01T16:07:46.536689] [PI] No function calls found in response
[2025-10-01T16:07:46.538534] [PI] No more function calls - research complete
[2025-10-01T16:07:46.540770] Saving text to bench_final/run1/medmcqa/medmcqa_1727/pi_final_answer.txt
[2025-10-01T16:07:46.546370] [QUERYOME] Query completed successfully
