( Well ( , ( weight ( ( is ( ( the force ) ( on ( ( a object ) ( caused ( by ( gravity ( trying ( to ( ( pull ( the object ) ) down ) ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (INTJ (UH Well)) (, ,) (NP (NN weight)) (VP (VBZ is) (NP (NP (DT the) (NN force)) (PP (IN on) (NP (NP (DT a) (NN object)) (VP (VBN caused) (PP (IN by) (NP (NP (NN gravity)) (VP (VBG trying) (S (VP (TO to) (VP (VB pull) (NP (DT the) (NN object)) (PRT (RP down))))))))))))) (. .)))
Well, weight is the force on a object caused by gravity trying to pull the object down.
(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)))))))))) (. .)))