( Momenum ( , ( ( like ( all ( vector quantities ) ) ) ( , ( ( has ( ( ( ( both ( a magnitude ) ) ( -LRB- ( size -RRB- ) ) ) and ) ( a direction ) ) ) . ) ) ) ) )
(ROOT (S (ADVP (RB Momenum)) (, ,) (PP (IN like) (NP (DT all) (NN vector) (NNS quantities))) (, ,) (VP (VBZ has) (NP (NP (PDT both) (DT a) (NN magnitude)) (PRN (-LRB- -LRB-) (NP (NN size)) (-RRB- -RRB-)) (CC and) (NP (DT a) (NN direction)))) (. .)))
Momenum, like all vector quantities, has both a magnitude ( size ) and a direction.
(ROOT (S (NP (NNP Vector)) (VP (VBZ is) (NP (NP (DT a) (NN measure)) (SBAR (WHNP (WDT that)) (S (VP (VBZ has) (NP (DT both) (NN size) (CC and) (NN direction))))))) (. .)))