(S (S (BASENP (NNS Critics)) (VP (VBP have) (VP (VP (VP (VBN showed) (PRT (RP up))) (PP (TO to) (BASENP (NNP Santorum) (NNS events)))) (CC and) (VP (VBN tried) (S (VP (TO to) (VP (VP (VB glitter) (BASENP (NN bomb))) (BASENP (DT the) (NN candidate))))))))) (PERIOD .))