( ( ( ( Forces ( Gravity ( Weight ( Newton ( Pressure Large ) ) ) ) ) or ) ( ( Small ( pg ( . ( 26-27 Observe ) ) ) ) ( that ( ( pushes and ) pulls ) ) ) ) ( ( ( are ( ( forces and ) measure ) ) ( these forces ) ) . ) )
(ROOT (S (NP (NP (NNP Forces) (NNP Gravity) (NNP Weight) (NNP Newton) (NN Pressure) (JJ Large)) (CC or) (NP (NP (NNP Small) (NNP pg) (. .) (CD 26-27) (NN Observe)) (SBAR (WHNP (WDT that)) (S (VP (VP (VBZ pushes)) (CC and) (VP (VBZ pulls))))))) (VP (VBP are) (NP (NNS forces) (CC and) (NN measure)) (NP (DT these) (NNS forces))) (. .)))
Forces Gravity Weight Newton Pressure Large or Small pg. 26-27 Observe that pushes and pulls are forces and measure these forces.
(ROOT (S (NP (NNP Weight)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (PP (IN for) (NP (NP (DT the) (NN measure)) (PP (IN of) (NP (NP (DT the) (NN force)) (PP (IN of) (NP (NP (NN gravity)) (VP (VBG pulling) (PRT (RP down)) (PP (IN on) (NP (DT an) (NN object)))))))))))) (. .)))