( ( ( 2.2 Instantaneous ) ( ( Velocity Memorize ) ( the definition ) ) ) . )
(ROOT (NP (NP (CD 2.2) (NNS Instantaneous)) (NP (NP (NNP Velocity) (NNP Memorize)) (NP (DT the) (NN definition))) (. .)))
2.2 Instantaneous Velocity Memorize the definition.
(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))))) (. .)))