( ( Define ( ( ( ( ( ( ( speed , ) velocity ) , ) distance ) , ) and ) time ) ) . )
(ROOT (S (VP (VB Define) (NP (NP (NN speed)) (, ,) (NP (NN velocity)) (, ,) (NP (NN distance)) (, ,) (CC and) (NP (NN time)))) (. .)))
Define speed, velocity, distance, and time.
(ROOT (S (NP (NP (NNP Distance)) (PP (IN over) (NP (NP (NN time)) (PP (IN in) (NP (DT a) (VBN given) (NN direction)))))) (VP (VBZ determines) (NP (NN velocity))) (. .)))