( ( The ( instantaneous velocity ) ) ( ( is ( defined ( as follows ) ) ) . ) )
(ROOT (S (NP (DT The) (NNS instantaneous) (NN velocity)) (VP (VBZ is) (VP (VBN defined) (SBAR (IN as) (S (VP (VBZ follows)))))) (. .)))
The instantaneous velocity is defined as follows.
(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))))) (. .)))