( ( ( 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 ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN organization)) (PP (IN of) (NP (DT the) (NN motor) (NN system)))) (VP (VBZ is) (ADJP (JJ similar) (PP (TO to) (NP (NP (DT that)) (PP (IN of) (NP (NN vision)))))) (, ,) (PP (VBG beginning) (PP (IN with) (NP (NP (DT the) (JJ primary) (NN motor) (NN cortex)) (PP (IN at) (NP (NP (DT the) (NN posterior) (NN edge)) (PP (IN of) (NP (DT the) (JJ frontal) (NN lobe))))))))) (. .)))
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.
(ROOT (S (NP (DT The) (JJ primary) (NN motor) (NN cortex)) (VP (VBZ is) (VP (VBN located) (PP (IN in) (NP (NP (DT the) (JJ frontal) (NN lobe)) (PP (IN of) (NP (DT the) (NN brain))))))) (. .)))
The primary motor cortex is located in the frontal lobe of the brain.