(S (S (BASENP (NNS Activists)) (VP (VBP have) (VP (VP (VBN sought) (NP (NP (NP (BASENP (NNS women) (POS 's)) (NN right)) (S (VP (TO to) (VP (VB vote))))) (PP (IN in) (BASENP (NNP Saudi) (NNP Arabia))))) (PP (IN for) (BASENP (NNS years)))))) (PERIOD .))