[2025-09-30T02:12:38.193159] [QUERYOME] Starting research for query 408: '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:
Sublingual space is divided from submandibular space by: 

Options:
{'A': 'Fibres of mylohyoid', 'B': 'Submandibular gland', 'C': 'Body of mandible', 'D': 'Geniohyoid'}'
[2025-09-30T02:12:38.300211] [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:
Sublingual space is divided from submandibular space by: 

Options:
{'A': 'Fibres of mylohyoid', 'B': 'Submandibular gland', 'C': 'Body of mandible', 'D': 'Geniohyoid'}'
[2025-09-30T02:12:38.306584] Saving text to bench_final/run1/medmcqa/medmcqa_407/pi_initial_prompt.txt
[2025-09-30T02:12:38.310121] [PI] Calling o3 for initial analysis...
[2025-09-30T02:12:44.837958] [PI] Reasoning iteration 1
[2025-09-30T02:12:44.842685] [PI reasoning] **Searching anatomical separation**

I see the question is about what separates the sublingual space from the submandibular space, which is indeed the mylohyoid muscle. This muscle forms the floor of the mouth, putting the sublingual space above it and the submandibular space below. So, I recognize that the answer involves the fibres of the mylohyoid. I also need to provide a citation for this, so a quick search to find reliable evidence is in order!
[2025-09-30T02:12:44.844874] [PI] Executing function call 1: hybrid_search
[2025-09-30T02:12:44.849657] [PI] Function arguments: {'query': 'mylohyoid muscle divides sublingual and submandibular spaces', 'k': 5, 'faiss_weight': 0.5, 'bm25_weight': 0.5, 'use_rrf': True}
[2025-09-30T02:12:44.852484] Saving JSON to bench_final/run1/medmcqa/medmcqa_407/pi_iteration_1_tool_call_2_hybrid_search.json
[2025-09-30T02:13:42.783477] [PI] Function hybrid_search executed successfully
[2025-09-30T02:13:42.785024] Saving JSON to bench_final/run1/medmcqa/medmcqa_407/pi_iteration_1_tool_result_2_hybrid_search.json
[2025-09-30T02:13:42.790310] [PI] Continuing reasoning with 1 function responses...
[2025-09-30T02:13:47.114808] [PI] Reasoning iteration 2
[2025-09-30T02:13:47.116528] [PI] No function calls found in response
[2025-09-30T02:13:47.117996] [PI] No more function calls - research complete
[2025-09-30T02:13:47.120473] Saving text to bench_final/run1/medmcqa/medmcqa_407/pi_final_answer.txt
[2025-09-30T02:13:47.124350] [QUERYOME] Query completed successfully
