equals the sum of its pretensions . 
(ROOT (S (VP (VBZ equals) (NP (NP (DT the) (NN sum)) (PP (IN of) (NP (PRP$ its) (NNS pretensions))))) (. .)))
(ROOT (S (VP (VBZ ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (PRP$ ) (NNS ))))) (. )))