( ( ( The weight ) ( of ( an object ) ) ) ( ( is ( ( a measurement ) ( of ( ( ( how much ) gravity ) ( is ( pulling ( on ( the object ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN weight)) (PP (IN of) (NP (DT an) (NN object)))) (VP (VBZ is) (NP (NP (DT a) (NN measurement)) (PP (IN of) (SBAR (WHNP (WHADJP (WRB how) (JJ much)) (NN gravity)) (S (VP (VBZ is) (VP (VBG pulling) (PP (IN on) (NP (DT the) (NN object)))))))))) (. .)))
The weight of an object is a measurement of how much gravity is pulling on the object.
(ROOT (S (NP (NNP Weight)) (VP (VBZ is) (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)))))))))) (. .)))