( Momentum ( ( is ( ( ( the product ) ( of ( ( mass and ) velocity ) ) ) ( of ( a body ) ) ) ) . ) )
(ROOT (S (NP (NNP Momentum)) (VP (VBZ is) (NP (NP (DT the) (NN product)) (PP (IN of) (NP (NN mass) (CC and) (NN velocity))) (PP (IN of) (NP (DT a) (NN body))))) (. .)))
Momentum is the product of mass and velocity of a body.
(ROOT (S (NP (NNP Momentum)) (VP (VBZ is) (ADJP (RB directly) (VBN related) (PP (TO to) (NP (NP (DT both) (NN mass)) (CC and) (NP (NN velocity)))))) (. .)))