(S (S (NP (BASENP (DT The) (JJ main) (NN opposition) (NN party)) (PRN (COMMA ,) (NP (NP (BASENP (DT the) (NNP Republican) (NNP People) (POS 's)) (NNP Party)) (PRN (LRB -LRB-) (BASENP (NNP CHP)) (RRB -RRB-))) (COMMA ,))) (VP (VBD hinted) (SBAR (IN that) (S (BASENP (PRP it)) (VP (MD may) (VP (VB nominate) (S (BASENP (PRPD its) (JJ own) (NN candidate)) (VP (TO to) (VP (VB challenge) (BASENP (NNP Gül))))))))))) (PERIOD .))