sentence2_structure: The primary motor cortex<>is located<>in the frontal lobe of the brain
sentence1: The organization of the motor system is similar to that of vision, beginning with the primary motor cortex at the posterior edge of the frontal lobe.
sentence2: The primary motor cortex is located in the frontal lobe of the brain.
question: The primary motor cortex is located in which lobe of the brain?