( This ( ( is ( ( the force ) ( ( ( ( ( exerted ( by ( ( the weight ) ( of ( a ( 1 ( kilogram mass ) ) ) ) ) ) ) ( in ( normal ( earth gravity ) ) ) ) , ) and ) ( is ( equal ( to ( ( ( 9.81 Newtons ) or ) ( 2.2 pounds ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT This)) (VP (VBZ is) (NP (NP (DT the) (NN force)) (VP (VP (VBN exerted) (PP (IN by) (NP (NP (DT the) (NN weight)) (PP (IN of) (NP (DT a) (CD 1) (NN kilogram) (NN mass))))) (PP (IN in) (NP (JJ normal) (NN earth) (NN gravity)))) (, ,) (CC and) (VP (VBZ is) (ADJP (JJ equal) (PP (TO to) (NP (NP (CD 9.81) (NNS Newtons)) (CC or) (NP (CD 2.2) (NNS pounds))))))))) (. .)))
This is the force exerted by the weight of a 1 kilogram mass in normal earth gravity, and is equal to 9.81 Newtons or 2.2 pounds.
(ROOT (S (NP (NNP Weight)) (VP (VBZ is) (NP (NP (DT the) (NN result)) (PP (IN of) (NP (NP (DT the) (NN force)) (PP (IN of) (NP (NP (NN gravity)) (VP (VBG being) (VP (VBN opposed) (PP (IN by) (NP (DT the) (JJ normal) (NN force))))))))))) (. .)))