( ( distance ( , ( velocity ( , ( and time ) ) ) ) ) ; )
(ROOT (NP (NP (NN distance) (, ,) (NN velocity) (, ,) (CC and) (NN time)) (: ;)))
distance, velocity, 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))) (. .)))