( And ( ( the ( symbol v ) ) ( ( stands ( for ( ( the ( instantaneous velocity ) ) ( of ( the object ) ) ) ) ) ; ) ) )
(ROOT (S (CC And) (NP (DT the) (NN symbol) (NN v)) (VP (VBZ stands) (PP (IN for) (NP (NP (DT the) (JJ instantaneous) (NN velocity)) (PP (IN of) (NP (DT the) (NN object)))))) (: ;)))
And the symbol v stands for the instantaneous velocity of the object;
(ROOT (S (NP (JJ Instantaneous) (NN velocity)) (VP (VBZ is) (VP (VBN defined) (PP (IN as) (NP (NP (DT the) (NN velocity)) (PP (IN of) (NP (DT the) (NN object))))) (PP (IN at) (NP (DT a) (VBN given) (NN moment))))) (. .)))