( ( ( The ( SI unit ) ) ( for ( ( ( ( ( position , ) distance ) , ) and ) displacement ) ) ) ( ( is ( ( the metre ) ( -LRB- ( m -RRB- ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NNP SI) (NN unit)) (PP (IN for) (NP (NP (NN position)) (, ,) (NP (NN distance)) (, ,) (CC and) (NP (NN displacement))))) (VP (VBZ is) (NP (NP (DT the) (NN metre)) (PRN (-LRB- -LRB-) (NP (NN m)) (-RRB- -RRB-)))) (. .)))
The SI unit for position, distance, and displacement is the metre (m).
(ROOT (S (NP (NNP Distance)) (VP (VBZ is) (VP (VBN defined) (PP (IN as) (NP (NP (DT the) (NN magnitude) (CC or) (NN size)) (PP (IN of) (NP (NP (NN displacement)) (PP (IN between) (NP (CD two) (NNS positions))))))))) (. .)))