(S (S (BASENP (PRP He)) (VP (VBZ has) (VP (VBN said) (SBAR (S (BASENP (PRP he)) (VP (MD will) (VP (VP (VB challenge) (NP (BASENP (DT the) (NN election) (POS 's)) (NN outcome))) (PP (IN in) (BASENP (NN court)))))))))) (PERIOD .))