input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 65-year-old man presents with left-sided numbness, diplopia, and blurring of vision. The diplopia is more prominent on his left-side lateral gaze. He denies having fever, headache, ocular pain, lacrimation, changes in color vision, or limb weakness. He has a past medical history of type-2 diabetes mellitus, hypertension, hypercholesterolemia, and ischemic heart disease. In addition, he had an ischemic stroke 9 years ago, from which he recovered completely with physiotherapy and rehabilitation. He has a history of a 56-pack-year cigarette smoking habit. His medications include aspirin, atorvastatin, glimepiride, metformin, metoprolol, and ramipril. The mental status examination is unremarkable. His muscle strength is normal in all 4 limbs. His sensations are decreased on his left side, including his face. The examination of extraocular movements is shown in the image. A lesion in which of the following locations explains the findings during eye examination?   (A) Cavernous sinus   (B) Corticospinal tract before pyramidal decussation   (C) Frontal eye field   (D) Medial longitudinal fasciculus
output: ['(D) Medial longitudinal fasciculus <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Cavernous sinus  (B) Corticospinal tract before pyramidal decussation  (C) Frontal eye field  (D) Medial longitudinal fasciculus <> possible answers', '  A 65-year-old man presents with left-sided numbness, diplopia, and blurring of vision. The diplopia is more prominent on his left-side lateral gaze. He denies having fever, headache, ocular pain, lacrimation, changes in color vision, or limb weakness. He has a past medical history of type-2 diabetes mellitus, hypertension, hypercholesterolemia, and ischemic heart disease. In addition, he had an ischemic stroke 9 years ago, from which he recovered completely with physiotherapy and rehabilitation. He has a history of a 56-pack-year cigarette smoking habit. His medications include aspirin, atorvastatin, glimepiride, metformin, metoprolol, and ramipril. The mental status examination is unremarkable. His muscle strength is normal in all 4 limbs. His sensations are decreased on his left side, including his face. The examination of extraocular movements is shown in the image. A lesion in which of the following locations explains the findings during eye examination? <> context']