( ( The ( instantaneous ( angular velocity ) ) ) ( is ( given by ) ) )
(ROOT (S (NP (DT The) (NNS instantaneous) (NN angular) (NN velocity)) (VP (VBZ is) (VP (VBN given) (PP (IN by))))))
The instantaneous angular velocity is given by
(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))))) (. .)))