(S (S (S (BASENP (NN Telecom) (NN company) (NNP AT&T)) (VP (VP (VBD provided) (NP (BASENP (JJ toll-free) (NN calling)) (CC and) (BASENP (NN 10) (NN call) (NNS centers)))) (PP (IN for) (BASENP (DT the) (NN event))))) (CC and) (S (BASENP (NNP MCI)) (VP (VP (VBN provided) (BASENP (NNS volunteers))) (PP (IN from) (BASENP (PRPD their) (NN call) (NNS centers)))))) (PERIOD .))